TY - JOUR T1 - Human eIF3: from 'blobology' to biological insight AN - 1868325497; PQ0004080945 AB - Translation in eukaryotes is highly regulated during initiation, a process impacted by numerous readouts of a cell's state. There are many cases in which cellular messenger RNAs likely do not follow the canonical 'scanning' mechanism of translation initiation, but the molecular mechanisms underlying these pathways are still being uncovered. Some RNA viruses such as the hepatitis C virus use highly structured RNA elements termed internal ribosome entry sites (IRESs) that commandeer eukaryotic translation initiation, by using specific interactions with the general eukaryotic translation initiation factor eIF3. Here, I present evidence that, in addition to its general role in translation, eIF3 in humans and likely in all multicellular eukaryotes also acts as a translational activator or repressor by binding RNA structures in the 5'-untranslated regions of specific mRNAs, analogous to the role of the mediator complex in transcription. Furthermore, eIF3 in multicellular eukaryotes also harbours a 5' 7-methylguanosine cap-binding subunit-eIF3d-which replaces the general cap-binding initiation factor eIF4E in the translation of select mRNAs. Based on results from cell biological, biochemical and structural studies of eIF3, it is likely that human translation initiation proceeds through dozens of different molecular pathways, the vast majority of which remain to be explored.This article is part of the themed issue 'Perspectives on the ribosome'. JF - Philosophical Transactions of the Royal Society of London, Series B: Biological Sciences AU - Cate, Jamie HD AD - Lawrence Berkeley National Laboratory, Division of Molecular Biophysics and Integrated Bioimaging, , Berkeley, CA 94720, USA, jcate@lbl.gov Y1 - 2017/03/19/ PY - 2017 DA - 2017 Mar 19 SP - 20160176 PB - Royal Society of London, 6 Carlton House Terrace London SW1Y 5AG United Kingdom VL - 372 IS - 1716 SN - 0962-8436, 0962-8436 KW - Ecology Abstracts KW - translation initiation KW - eIF3 KW - mediator KW - IRES KW - eIF4E KW - eIF3d UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1868325497?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Philosophical+Transactions+of+the+Royal+Society+of+London%2C+Series+B%3A+Biological+Sciences&rft.atitle=Human+eIF3%3A+from+%27blobology%27+to+biological+insight&rft.au=Cate%2C+Jamie+HD&rft.aulast=Cate&rft.aufirst=Jamie&rft.date=2017-03-19&rft.volume=372&rft.issue=1716&rft.spage=20160176&rft.isbn=&rft.btitle=&rft.title=Philosophical+Transactions+of+the+Royal+Society+of+London%2C+Series+B%3A+Biological+Sciences&rft.issn=09628436&rft_id=info:doi/10.1098%2Frstb.2016.0176 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-02-01 N1 - Last updated - 2017-02-15 DO - http://dx.doi.org/10.1098/rstb.2016.0176 ER - TY - JOUR T1 - Monoterpene 'thermometer' of tropical forest-atmosphere response to climate warming AN - 1872836088; PQ0004100940 AB - Tropical forests absorb large amounts of atmospheric CO sub(2) through photosynthesis but elevated temperatures suppress this absorption and promote monoterpene emissions. Using super(13)CO sub(2) labeling, here we show that monoterpene emissions from tropical leaves derive from recent photosynthesis and demonstrate distinct temperature optima for five groups (Groups 1-5), potentially corresponding to different enzymatic temperature-dependent reaction mechanisms within beta -ocimene synthases. As diurnal and seasonal leaf temperatures increased during the Amazonian 2015 El Nino event, leaf and landscape monoterpene emissions showed strong linear enrichments of beta -ocimenes (+4.4% degree C super(-1)) at the expense of other monoterpene isomers. The observed inverse temperature response of alpha -pinene (-0.8% degree C super(-1)), typically assumed to be the dominant monoterpene with moderate reactivity, was not accurately simulated by current global emission models. Given that beta -ocimenes are highly reactive with respect to both atmospheric and biological oxidants, the results suggest that highly reactive beta -ocimenes may play important roles in the thermotolerance of photosynthesis by functioning as effective antioxidants within plants and as efficient atmospheric precursors of secondary organic aerosols. Thus, monoterpene composition may represent a new sensitive 'thermometer' of leaf oxidative stress and atmospheric reactivity, and therefore a new tool in future studies of warming impacts on tropical biosphere-atmosphere carbon-cycle feedbacks. High temperatures threaten the ability of tropical forests to absorb large amounts of atmospheric CO sub(2) by photosynthesis, but promote the emissions of monoterpenes (C10H16). Here, we show that as record high leaf diurnal and seasonal temperatures were experienced in the central Amazon during the 2015 El Nino event, leaf and landscape monoterpene emissions showed strong linear enrichments of beta -ocimenes (+4.4% degree C super(-1)) at the expense of other monoterpene isomers. The results demonstrate consistent temperature sensitivities of five monoterpene groups that were reproducible across large temporal (minutes to seasons) and spatial (leaves to landscape) scales but are not accurately simulated in current Earth Systems models. We suggest that the shift to highly reactive beta -ocimenes (Group 1) at high leaf temperatures facilitates forest-atmosphere response to warming by functioning as: (1) effective antioxidants in plants, enhancing thermotolerance of photosynthesis and (2) as efficient atmospheric precursors of secondary organic aerosols, enhancing cloud cover and precipitation. JF - Plant, Cell & Environment AU - Jardine, Kolby J AU - Jardine, Angela B AU - Holm, Jennifer A AU - Lombardozzi, Danica L AU - Negron-Juarez, Robinson I AU - Martin, Scot T AU - Beller, Harry R AU - Gimenez, Bruno O AU - Higuchi, Niro AU - Chambers, Jeffrey Q AD - Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA. Y1 - 2017/03// PY - 2017 DA - March 2017 SP - 441 EP - 452 PB - Wiley Subscription Services, Inc., 1105 N Market St Wilmington DE 19801 VL - 40 IS - 3 SN - 0140-7791, 0140-7791 KW - Environment Abstracts; Calcium & Calcified Tissue Abstracts KW - Diurnal variations KW - Aerosols KW - Antioxidants KW - Photosynthesis KW - Landscape KW - Temperature KW - Tropical forests KW - Sulfur dioxide KW - El Nino KW - Emissions KW - Monoterpenes KW - Carbon dioxide KW - Seasonal variations KW - Oxidants KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1872836088?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant%2C+Cell+%26+Environment&rft.atitle=Monoterpene+%27thermometer%27+of+tropical+forest-atmosphere+response+to+climate+warming&rft.au=Jardine%2C+Kolby+J%3BJardine%2C+Angela+B%3BHolm%2C+Jennifer+A%3BLombardozzi%2C+Danica+L%3BNegron-Juarez%2C+Robinson+I%3BMartin%2C+Scot+T%3BBeller%2C+Harry+R%3BGimenez%2C+Bruno+O%3BHiguchi%2C+Niro%3BChambers%2C+Jeffrey+Q&rft.aulast=Jardine&rft.aufirst=Kolby&rft.date=2017-03-01&rft.volume=40&rft.issue=3&rft.spage=441&rft.isbn=&rft.btitle=&rft.title=Plant%2C+Cell+%26+Environment&rft.issn=01407791&rft_id=info:doi/10.1111%2Fpce.12879 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-03-01 N1 - Last updated - 2017-03-01 N1 - SubjectsTermNotLitGenreText - Diurnal variations; Aerosols; Antioxidants; Photosynthesis; Landscape; Temperature; Tropical forests; Sulfur dioxide; El Nino; Monoterpenes; Emissions; Carbon dioxide; Seasonal variations; Oxidants DO - http://dx.doi.org/10.1111/pce.12879 ER - TY - JOUR T1 - Kinetic Pathway of 3-Helix Micelle Formation. AN - 1865826277; 28165730 AB - A subtle but highly pertinent factor in the self-assembly of hierarchical nanostructures is the kinetic landscape. Self-assembly of a hierarchical multicomponent system requires the intricate balance of noncovalent interactions on a similar energy scale that can result in several self-assembly processes occurring at different time scales. We seek to understand the hierarchical assemblies within an amphiphilic 3-helix peptide-PEG-lipid conjugate system in the formation process of highly stable 3-helix micelles (3HMs). 3HM self-assembles through multiple parallel processes: helix folding, coiled-coil formation, micelle assembly, and packing of alkyl chains. Our results show that the kinetic pathway of 3HM formation is mainly governed by two confounding factors: lateral diffusion of amphiphiles to form coiled-coils within the micelle corona and packing of alkyl tails within the hydrophobic micelle core. 3HM has exhibited highly desirable attributes as a drug delivery nanocarrier; understanding the role of individual components in the kinetic pathway of 3HM formation will allow us to exert better control over the kinetic pathway, as well as to enhance future design and eventually manipulate the kinetic intermediates for potential drug delivery applications. JF - Biomacromolecules AU - Ang, JooChuan AU - Jung, Benson T AU - Dong, He AU - Xu, Ting AD - Material Science Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States. Y1 - 2017/02/15/ PY - 2017 DA - 2017 Feb 15 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1865826277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Waste+management+%28New+York%2C+N.Y.%29&rft.atitle=Feasible+conversion+of+solid+waste+bauxite+tailings+into+highly+crystalline+4A+zeolite+with+valuable+application.&rft.au=Ma%2C+Dongyang%3BWang%2C+Zhendong%3BGuo%2C+Min%3BZhang%2C+Mei%3BLiu%2C+Jingbo&rft.aulast=Ma&rft.aufirst=Dongyang&rft.date=2014-11-01&rft.volume=34&rft.issue=11&rft.spage=2365&rft.isbn=&rft.btitle=&rft.title=Waste+management+%28New+York%2C+N.Y.%29&rft.issn=1879-2456&rft_id=info:doi/10.1016%2Fj.wasman.2014.07.012 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2017-02-06 N1 - Date revised - 2017-02-18 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1021/acs.biomac.6b01831 ER - TY - JOUR T1 - Early exposure to thirdhand cigarette smoke affects body mass and the development of immunity in mice. AN - 1865534303; 28157226 AB - Thirdhand smoke (THS) is the fraction of cigarette smoke that persists in indoor environments after smoking. We investigated the effects of neonatal and adult THS exposure on bodyweight and blood cell populations in C57BL/6 J mice. At the end of neonatal exposure, THS-treated male and female mice had significantly lower bodyweight than their respective control mice. However, five weeks after neonatal exposure ended, THS-treated mice weighed the same as controls. In contrast, adult THS exposure did not change bodyweight of mice. On the other hand, both neonatal and adult THS exposure had profound effects on the hematopoietic system. Fourteen weeks after neonatal THS exposure ended, eosinophil number and platelet volume were significantly higher, while hematocrit, mean cell volume, and platelet counts were significantly lower compared to control. Similarly, adult THS exposure also decreased platelet counts and increased neutrophil counts. Moreover, both neonatal and adult THS exposure caused a significant increase in percentage of B-cells and significantly decreased percentage of myeloid cells. Our results demonstrate that neonatal THS exposure decreases bodyweight and that THS exposure induces persistent changes in the hematopoietic system independent of age at exposure. These results also suggest that THS exposure may have adverse effects on human health. JF - Scientific reports AU - Hang, Bo AU - Snijders, Antoine M AU - Huang, Yurong AU - Schick, Suzaynn F AU - Wang, Pin AU - Xia, Yankai AU - Havel, Christopher AU - Jacob, Peyton AU - Benowitz, Neal AU - Destaillats, Hugo AU - Gundel, Lara A AU - Mao, Jian-Hua AD - Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. ; Department of Medicine, Division of Occupational and Environmental Medicine, University of California, San Francisco, Box 0843, San Francisco, CA 94143, USA. ; Department of Gastroenterology, The Affiliated Drum Tower, Clinical Medical School, Nanjing Medical University, Nanjing, Jiangsu 210008, China. ; State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China. ; Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. Y1 - 2017/02/03/ PY - 2017 DA - 2017 Feb 03 SP - 41915 VL - 7 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1865534303?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Scientific+reports&rft.atitle=Early+exposure+to+thirdhand+cigarette+smoke+affects+body+mass+and+the+development+of+immunity+in+mice.&rft.au=Hang%2C+Bo%3BSnijders%2C+Antoine+M%3BHuang%2C+Yurong%3BSchick%2C+Suzaynn+F%3BWang%2C+Pin%3BXia%2C+Yankai%3BHavel%2C+Christopher%3BJacob%2C+Peyton%3BBenowitz%2C+Neal%3BDestaillats%2C+Hugo%3BGundel%2C+Lara+A%3BMao%2C+Jian-Hua&rft.aulast=Hang&rft.aufirst=Bo&rft.date=2017-02-03&rft.volume=7&rft.issue=&rft.spage=41915&rft.isbn=&rft.btitle=&rft.title=Scientific+reports&rft.issn=2045-2322&rft_id=info:doi/10.1038%2Fsrep41915 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2017-02-03 N1 - Date revised - 2017-02-28 N1 - SuppNotes - Cited By: Environ Sci Technol. 2014 Nov 18;48(22):13093-101 [25317906] Environ Health Perspect. 2009 Jul;117(7):A310 [19654904] Proc Natl Acad Sci U S A. 2010 Apr 13;107(15):6576-81 [20142504] PLoS One. 2014 Jan 29;9(1):e86391 [24489722] Tob Control. 2015 Dec 3;:null [26635031] Environ Health Perspect. 2009 Jul;117(7):1042-8 [19654910] J Endocrinol. 2012 Mar;212(3):317-26 [22138237] PLoS One. 2014 Oct 06;9(10):e108258 [25286392] Toxicol Sci. 2016 Mar;150(1):234-46 [26719373] Environ Int. 2014 Oct;71:139-47 [25036615] Food Chem Toxicol. 2012 Oct;50(10):3600-3 [22858449] J Cardiovasc Pharmacol. 2015 Aug;66(2):177-82 [25853992] Am J Respir Crit Care Med. 1999 Feb;159(2):473-9 [9927360] Sci Rep. 2016 Apr 29;6:24987 [27126191] Pediatr Allergy Immunol. 2010 Dec;21(8):1171-8 [20561234] Environ Health Perspect. 2011 Sep;119(9):1218-26 [21628107] J Chromatogr A. 2009 Nov 6;1216(45):7899-905 [19800070] Clin Pharmacol Ther. 2011 Jul;90(1):164-8 [21633341] Environ Sci Technol. 2005 Sep 15;39(18):7027-35 [16201626] Sci Rep. 2015 Oct 22;5:15512 [26489853] Environ Health Perspect. 2011 Sep;119(9):1294-300 [21628108] Tob Control. 2014 Mar;23 (2):152-9 [23716171] Am J Physiol Endocrinol Metab. 2014 Nov 15;307(10):E919-27 [25269485] Pediatrics. 2010 Jul;126(1):e66-72 [20547649] Environ Sci Technol. 2006 Mar 15;40(6):1799-805 [16570600] Mutagenesis. 2013 Jul;28(4):381-91 [23462851] Conflict of Interest: The authors declare no competing financial interests. N1 - Last updated - 2017-02-28 DO - http://dx.doi.org/10.1038/srep41915 ER - TY - JOUR T1 - Bottom-up design of de novo thermoelectric hybrid materials using chalcogenide resurfacing AN - 1872837220; PQ0004123580 AB - Hybrid organic/inorganic thermoelectric materials based on conducting polymers and inorganic nanostructures have been demonstrated to combine both the inherently low thermal conductivity of the polymer and the superior charge transport properties (high power factors) of the inorganic component. While their performance today still lags behind that of conventional inorganic thermoelectric materials, solution-processable hybrids have made rapid progress and also offer unique advantages not available to conventional rigid inorganic thermoelectrics, namely: (1) low cost fabrication on rigid and flexible substrates, as well as (2) engineering complex conformal geometries for energy harvesting/cooling. While the number of reports of new classes of viable hybrid thermoelectric materials is growing, no group has reported a general approach for bottom-up design of both p- and n-type materials from one common base. Thus, unfortunately, the literature comprises mostly of disconnected discoveries, which limits development and calls for a first-principles approach for property manipulation analogous to doping in traditional semiconductor thermoelectrics. Here, molecular engineering at the organic/inorganic interface and simple processing techniques are combined to demonstrate a modular approach enabling de novo design of complex hybrid thermoelectric systems. We chemically modify the surfaces of inorganic nanostructures and graft conductive polymers to yield robust solution processable p- and n-type inorganic/organic hybrid nanostructures. Our new modular approach not only offers researchers new tools to perform true bottom-up design of thermoelectric hybrids, but also strong performance advantages as well due to the quality of the designed interfaces. For example, we obtain enhanced power factors in existing (by up to 500% in Te/PEDOT:PSS) and novel (Bi2S3/PEDOT:PSS) p-type systems, and also generate water-processable and air-stable high performing n-type hybrid systems (Bi2Te3/PEDOT:PSS), thus highlighting the potency of our ex situ strategy in opening up new material options for thermoelectric applications. This strategy establishes a unique platform with broad handles for custom tailoring of thermal and electrical properties through hybrid material tunability and enables independent control over inorganic material chemistry, nanostructure geometry, and organic material properties, thus providing a robust pathway to major performance enhancements. JF - Journal of materials chemistry. A, Materials for energy and sustainability AU - Sahu, Ayaskanta AU - Russ, Boris AU - Su, Norman C AU - Forster, Jason D AU - Zhou, Preston AU - Cho, Eun Seon AU - Ercius, Peter AU - Coates, Nelson E AU - Segalman, Rachel A AU - Urban, Jeffrey J AD - The Molecular Foundry; Lawrence Berkeley National Lab; Berkeley; CA 94720; USA Y1 - 2017/02// PY - 2017 DA - February 2017 SP - 3346 EP - 3357 PB - Royal Society of Chemistry VL - 5 IS - 7 SN - 2050-7488, 2050-7488 KW - Environment Abstracts KW - Fabrics KW - Thermal conductivity KW - Hybrids KW - Energy KW - Polymers KW - Harvesting KW - Sustainability KW - Design KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1872837220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+materials+chemistry.+A%2C+Materials+for+energy+and+sustainability&rft.atitle=Bottom-up+design+of+de+novo+thermoelectric+hybrid+materials+using+chalcogenide+resurfacing&rft.au=Sahu%2C+Ayaskanta%3BRuss%2C+Boris%3BSu%2C+Norman+C%3BForster%2C+Jason+D%3BZhou%2C+Preston%3BCho%2C+Eun+Seon%3BErcius%2C+Peter%3BCoates%2C+Nelson+E%3BSegalman%2C+Rachel+A%3BUrban%2C+Jeffrey+J&rft.aulast=Sahu&rft.aufirst=Ayaskanta&rft.date=2017-02-01&rft.volume=5&rft.issue=7&rft.spage=3346&rft.isbn=&rft.btitle=&rft.title=Journal+of+materials+chemistry.+A%2C+Materials+for+energy+and+sustainability&rft.issn=20507488&rft_id=info:doi/10.1039%2Fc6ta09781b LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-03-01 N1 - Number of references - 71 N1 - Last updated - 2017-03-01 N1 - SubjectsTermNotLitGenreText - Fabrics; Thermal conductivity; Energy; Hybrids; Polymers; Sustainability; Harvesting; Design DO - http://dx.doi.org/10.1039/c6ta09781b ER - TY - JOUR T1 - Compartmentalization of the Coso east flank geothermal field imaged by 3-D full-tensor MT inversion AN - 1869032521; 2017-010376 AB - Previous magnetotelluric (MT) studies of the high-temperature Coso geothermal system in California identified a subvertical feature of low resistivity (2-5 Ohm m) and appreciable lateral extent (>1 km) in the producing zone of the East Flank field. However, these models could not reproduce gross 3-D effects in the recorded data. We perform 3-D full-tensor inversion and retrieve a resistivity model that out-performs previous 2-D and 3-D off-diagonal models in terms of its fit to the complete 3-D MT data set as well as the degree of modelling bias. Inclusion of secondary Zxx and Zyy data components leads to a robust east-dip (60) to the previously identified conductive East Flank reservoir feature, which correlates strongly with recently mapped surface faults, downhole well temperatures, 3-D seismic reflection data, and local microseismicity. We perform synthetic forward modelling to test the best-fit dip of this conductor using the response at a nearby MT station. We interpret the dipping conductor as a fractured and fluidized compartment, which is structurally controlled by an unmapped blind East Flank fault zone. JF - Geophysical Journal International AU - Lindsey, Nathaniel J AU - Kaven, Joern Ole AU - Davatzes, Nicholas AU - Newman, Gregory A Y1 - 2017/02// PY - 2017 DA - February 2017 SP - 652 EP - 662 PB - Oxford University Press on behalf of The Royal Astronomical Society, the Deutsche Geophysikalische Gesellschaft and the European Geophysical Society VL - 208 IS - 2 SN - 0956-540X, 0956-540X KW - United States KW - numerical models KW - three-dimensional models KW - Coso Hot Springs KGRA KW - well-logging KW - geophysical methods KW - inverse problem KW - downhole methods KW - resistivity KW - magnetotelluric methods KW - California KW - geothermal fields KW - Inyo County California KW - geothermal reservoirs KW - geothermal systems KW - compartmentalization KW - seismicity KW - faults KW - fault zones KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1869032521?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Journal+International&rft.atitle=Compartmentalization+of+the+Coso+east+flank+geothermal+field+imaged+by+3-D+full-tensor+MT+inversion&rft.au=Lindsey%2C+Nathaniel+J%3BKaven%2C+Joern+Ole%3BDavatzes%2C+Nicholas%3BNewman%2C+Gregory+A&rft.aulast=Lindsey&rft.aufirst=Nathaniel&rft.date=2017-02-01&rft.volume=208&rft.issue=2&rft.spage=652&rft.isbn=&rft.btitle=&rft.title=Geophysical+Journal+International&rft.issn=0956540X&rft_id=info:doi/10.1093%2Fgji%2Fggw408 L2 - http://www.blackwellpublishing.com/journal.asp?ref=0956-540X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Number of references - 59 N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - Includes appendix N1 - Last updated - 2017-02-17 N1 - SubjectsTermNotLitGenreText - California; compartmentalization; Coso Hot Springs KGRA; downhole methods; fault zones; faults; geophysical methods; geothermal fields; geothermal reservoirs; geothermal systems; inverse problem; Inyo County California; magnetotelluric methods; numerical models; resistivity; seismicity; three-dimensional models; United States; well-logging DO - http://dx.doi.org/10.1093/gji/ggw408 ER - TY - JOUR T1 - Large reductions in urban black carbon concentrations in the United States between 1965 and 2000 AN - 1859488562; PQ0004002644 AB - Long-term pollutant concentration trends can be useful for evaluating air quality effects of emission controls and historical transitions in energy sources. We employed archival records of coefficient of haze (COH), a now-retired measure of light-absorbing particulate matter, to re-construct historical black carbon (BC) concentrations at urban locations in the United States (U.S.). The following relationship between COH and BC was determined by reinstating into service COH monitors beside aethalometers for two years in Vallejo and one year in San Jose, California: BC ( mu g m-3) = 6.7COH + 0.1, R2 = 0.9. Estimated BC concentrations in ten states stretching from the East to West Coast decreased markedly between 1965 and 1980: 5-fold in Illinois, Ohio, and Virginia, 4-fold in Missouri, and 2.5-fold in Pennsylvania. Over the period from the mid-1960s to the early 2000s, annual average BC concentrations in New Jersey and California decreased from 13 to 2 mu g m-3 and 4 to 1 mu g m-3, respectively, despite concurrent increases in fossil fuel consumption from 1.6 to 2.1 EJ (EJ = 1018 J) in New Jersey and 4.2 to 6.4 EJ in California. New Jersey's greater reliance on BC-producing heavy fuel oils and coal in the 1960s and early 1970s and subsequent transition to cleaner fuels explains why the decrease was larger in New Jersey than California. Patterns in seasonal and weekly BC concentrations and energy consumption trends together indicate that reducing wintertime emissions - namely substituting natural gas and electricity for heavy fuel oil in the residential sector - and decreasing emissions from diesel vehicles contributed to lower ambient BC concentrations. Over the period of study, declining concentrations of BC, a potent and short-lived climate warming pollutant, contrast increasing fossil fuel carbon dioxide (CO2) emissions in the U.S. Declining BC emissions may have had the benefit of mitigating some atmospheric warming driven by increased CO2 emissions with complementary health benefits. JF - Atmospheric Environment AU - Kirchstetter, Thomas W AU - Preble, Chelsea V AU - Hadley, Odelle L AU - Bond, Tami C AU - Apte, Joshua S AD - Energy Analysis and Environmental Impacts Division, Lawrence Berkeley National Laboratory, CA, USA Y1 - 2017/02// PY - 2017 DA - February 2017 SP - 17 EP - 23 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 151 SN - 1352-2310, 1352-2310 KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Environment Abstracts; Oceanic Abstracts; Water Resources Abstracts KW - Concentration trends KW - Coefficient of haze KW - Elemental carbon KW - Air pollution KW - Energy consumption KW - Carbon dioxide emissions KW - Historical account KW - Fuels KW - ANW, USA, Virginia KW - Haze KW - Oil KW - INE, USA, California KW - Emissions KW - USA, Missouri KW - Atmospheric pollution KW - Fossil fuels KW - USA, Illinois KW - Energy resources KW - USA, Pennsylvania KW - Carbon dioxide KW - Benefits KW - Carbon Dioxide KW - Black carbon KW - Climate change KW - Air quality KW - Particulates KW - Coal KW - Atmospheric pollution by diesel engines KW - Carbon KW - Pollutants KW - Coasts KW - Climate warming KW - Climate KW - Emission control KW - Suspended particulate matter KW - Atmospheric pollution by motor vehicles KW - Natural gas KW - Natural Gas KW - ANW, USA, New Jersey KW - Residential areas KW - Urban atmospheric pollution KW - USA, Ohio KW - M2 551.510.42:Air Pollution (551.510.42) KW - SW 0810:General KW - Q2 09241:General KW - O 4080:Pollution - Control and Prevention KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859488562?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Large+reductions+in+urban+black+carbon+concentrations+in+the+United+States+between+1965+and+2000&rft.au=Kirchstetter%2C+Thomas+W%3BPreble%2C+Chelsea+V%3BHadley%2C+Odelle+L%3BBond%2C+Tami+C%3BApte%2C+Joshua+S&rft.aulast=Kirchstetter&rft.aufirst=Thomas&rft.date=2017-02-01&rft.volume=151&rft.issue=&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2016.11.001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-01-01 N1 - Last updated - 2017-02-15 N1 - SubjectsTermNotLitGenreText - Carbon; Fossil fuels; Energy resources; Fuels; Climate; Suspended particulate matter; Coal; Carbon dioxide; Natural gas; Atmospheric pollution by diesel engines; Atmospheric pollution; Climate warming; Urban atmospheric pollution; Air quality; Carbon dioxide emissions; Atmospheric pollution by motor vehicles; Haze; Historical account; Black carbon; Climate change; Emission control; Particulates; Oil; Residential areas; Emissions; Natural Gas; Pollutants; Benefits; Coasts; Carbon Dioxide; ANW, USA, New Jersey; USA, Illinois; INE, USA, California; USA, Pennsylvania; USA, Missouri; USA, Ohio; ANW, USA, Virginia DO - http://dx.doi.org/10.1016/j.atmosenv.2016.11.001 ER - TY - JOUR T1 - Cellular Senescence Promotes Adverse Effects of Chemotherapy and Cancer Relapse. AN - 1851691671; 27979832 AB - Cellular senescence suppresses cancer by irreversibly arresting cell proliferation. Senescent cells acquire a proinflammatory senescence-associated secretory phenotype. Many genotoxic chemotherapies target proliferating cells nonspecifically, often with adverse reactions. In accord with prior work, we show that several chemotherapeutic drugs induce senescence of primary murine and human cells. Using a transgenic mouse that permits tracking and eliminating senescent cells, we show that therapy-induced senescent (TIS) cells persist and contribute to local and systemic inflammation. Eliminating TIS cells reduced several short- and long-term effects of the drugs, including bone marrow suppression, cardiac dysfunction, cancer recurrence, and physical activity and strength. Consistent with our findings in mice, the risk of chemotherapy-induced fatigue was significantly greater in humans with increased expression of a senescence marker in T cells prior to chemotherapy. These findings suggest that senescent cells can cause certain chemotherapy side effects, providing a new target to reduce the toxicity of anticancer treatments.SIGNIFICANCEMany genotoxic chemotherapies have debilitating side effects and also induce cellular senescence in normal tissues. The senescent cells remain chronically present where they can promote local and systemic inflammation that causes or exacerbates many side effects of the chemotherapy. Cancer Discov; 7(2); 165-76. ©2016 AACR.This article is highlighted in the In This Issue feature, p. 115. JF - Cancer discovery AU - Demaria, Marco AU - O'Leary, Monique N AU - Chang, Jianhui AU - Shao, Lijian AU - Liu, Su AU - Alimirah, Fatouma AU - Koenig, Kristin AU - Le, Catherine AU - Mitin, Natalia AU - Deal, Allison M AU - Alston, Shani AU - Academia, Emmeline C AU - Kilmarx, Sumner AU - Valdovinos, Alexis AU - Wang, Boshi AU - de Bruin, Alain AU - Kennedy, Brian K AU - Melov, Simon AU - Zhou, Daohong AU - Sharpless, Norman E AU - Muss, Hyman AU - Campisi, Judith AD - Buck Institute for Research on Aging, Novato, California. jcampisi@buckinstitute.org jcampisi@lbl.gov m.demaria@umcg.nl. ; Buck Institute for Research on Aging, Novato, California. ; Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas. ; HealthSpan Diagnostics, Research Triangle Park, North Carolina. ; The Lineberger Comprehensive Cancer Center and Department of Medicine, The University of North Carolina School of Medicine, Chapel Hill, North Carolina. ; European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands. ; Department of Pathobiology, University of Utrecht, Utrecht, the Netherlands. Y1 - 2017/02// PY - 2017 DA - February 2017 SP - 165 EP - 176 VL - 7 IS - 2 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1851691671?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cancer+discovery&rft.atitle=Cellular+Senescence+Promotes+Adverse+Effects+of+Chemotherapy+and+Cancer+Relapse.&rft.au=Demaria%2C+Marco%3BO%27Leary%2C+Monique+N%3BChang%2C+Jianhui%3BShao%2C+Lijian%3BLiu%2C+Su%3BAlimirah%2C+Fatouma%3BKoenig%2C+Kristin%3BLe%2C+Catherine%3BMitin%2C+Natalia%3BDeal%2C+Allison+M%3BAlston%2C+Shani%3BAcademia%2C+Emmeline+C%3BKilmarx%2C+Sumner%3BValdovinos%2C+Alexis%3BWang%2C+Boshi%3Bde+Bruin%2C+Alain%3BKennedy%2C+Brian+K%3BMelov%2C+Simon%3BZhou%2C+Daohong%3BSharpless%2C+Norman+E%3BMuss%2C+Hyman%3BCampisi%2C+Judith&rft.aulast=Demaria&rft.aufirst=Marco&rft.date=2017-02-01&rft.volume=7&rft.issue=2&rft.spage=165&rft.isbn=&rft.btitle=&rft.title=Cancer+discovery&rft.issn=2159-8290&rft_id=info:doi/10.1158%2F2159-8290.CD-16-0241 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-12-16 N1 - Date revised - 2017-02-28 N1 - SuppNotes - Cited By: Nature. 2016 Feb 11;530(7589):184-9 [26840489] Cancer. 2008 Oct 1;113(7 Suppl):1857-87 [18798529] Cell. 2013 Jan 17;152(1-2):340-51 [23332765] Curr Mol Med. 2005 Mar;5(2):187-96 [15974872] J Natl Cancer Inst. 2014 Apr;106(4):dju057 [24681605] Nat Rev Cancer. 2003 Apr;3(4):286-95 [12671667] Cell Death Differ. 2008 Jan;15(1):13-20 [18007666] PLoS Biol. 2008 Dec 2;6(12):2853-68 [19053174] JAMA. 2013 Jun 12;309(22):2371-81 [23757085] J Cell Biol. 2013 May 13;201(4):613-29 [23649808] Annu Rev Physiol. 2013;75:685-705 [23140366] Nat Cell Biol. 2015 Aug;17(8):1049-61 [26147250] Dev Cell. 2014 Dec 22;31(6):722-33 [25499914] Nat Med. 2015 Dec;21(12):1424-35 [26646499] Breast Cancer Res. 2006;8(4):212 [16887003] Nature. 2013 Sep 19;501(7467):421-5 [23945590] J Natl Cancer Inst. 2010 Oct 20;102(20):1536-46 [20858887] EBioMedicine. 2016 Sep;11:227-238 [27591832] Nat Commun. 2013;4:1908 [23715267] Mol Biol Cell. 2012 Jun;23(11):2066-75 [22496421] J Clin Invest. 2004 Nov;114(9):1299-307 [15520862] Nat Cell Biol. 2009 Aug;11(8):973-9 [19597488] N Engl J Med. 1998 Sep 24;339(13):900-5 [9744975] Chem Biol. 2010 May 28;17(5):421-33 [20534341] Nat Med. 2016 Jan;22(1):78-83 [26657143] J Invest Dermatol. 2015 Jul;135(7):1722-6 [25855157] Aging Cell. 2009 Aug;8(4):439-48 [19485966] Nat Med. 2012 Sep;18(9):1359-68 [22863786] Aging Cell. 2006 Oct;5(5):379-89 [16911562] Nature. 2011 Nov 02;479(7372):232-6 [22048312] Lancet Oncol. 2016 Oct;17 (10 ):1453-1462 [27612583] Nat Clin Pract Oncol. 2008 Nov;5(11):632-3 [18813228] Aging Cell. 2013 Oct;12(5):851-62 [23734717] Conflict of Interest: All other authors declare no financial interests. N1 - Last updated - 2017-02-28 DO - http://dx.doi.org/10.1158/2159-8290.CD-16-0241 ER - TY - JOUR T1 - On-chip integration of droplet microfluidics and nanostructure-initiator mass spectrometry for enzyme screening. AN - 1852669142; 27957569 AB - Biological assays often require expensive reagents and tedious manipulations. These shortcomings can be overcome using digitally operated microfluidic devices that require reduced sample volumes to automate assays. One particular challenge is integrating bioassays with mass spectrometry based analysis. Towards this goal we have developed μNIMS, a highly sensitive and high throughput technique that integrates droplet microfluidics with nanostructure-initiator mass spectrometry (NIMS). Enzyme reactions are carried out in droplets that can be arrayed on discrete NIMS elements at defined time intervals for subsequent mass spectrometry analysis, enabling time resolved enzyme activity assay. We apply the μNIMS platform for kinetic characterization of a glycoside hydrolase enzyme (CelE-CMB3A), a chimeric enzyme capable of deconstructing plant hemicellulose into monosaccharides for subsequent conversion to biofuel. This study reveals NIMS nanostructures can be fabricated into arrays for microfluidic droplet deposition, NIMS is compatible with droplet and digital microfluidics, and can be used on-chip to assay glycoside hydrolase enzyme in vitro. JF - Lab on a chip AU - Heinemann, Joshua AU - Deng, Kai AU - Shih, Steve C C AU - Gao, Jian AU - Adams, Paul D AU - Singh, Anup K AU - Northen, Trent R AD - Joint Bioenergy Institute, Emeryville, California 94608, USA and Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. trnorthen@lbl.gov. ; Joint Bioenergy Institute, Emeryville, California 94608, USA and Sandia National Laboratories, Livermore, California 94551, USA. ; Department of Electrical and Computer Engineering, Concordia University, Montreal, Quebec, Canada. ; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. trnorthen@lbl.gov. ; Joint Bioenergy Institute, Emeryville, California 94608, USA and Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. trnorthen@lbl.gov and Department of Bioengineering, University of California, Berkeley, California, 94720, USA. ; Joint Bioenergy Institute, Emeryville, California 94608, USA and Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. trnorthen@lbl.gov and Joint Genome Institute, Walnut creek, California, 94598, USA. Y1 - 2017/01/17/ PY - 2017 DA - 2017 Jan 17 SP - 323 EP - 331 VL - 17 IS - 2 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1852669142?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Lab+on+a+chip&rft.atitle=On-chip+integration+of+droplet+microfluidics+and+nanostructure-initiator+mass+spectrometry+for+enzyme+screening.&rft.au=Heinemann%2C+Joshua%3BDeng%2C+Kai%3BShih%2C+Steve+C+C%3BGao%2C+Jian%3BAdams%2C+Paul+D%3BSingh%2C+Anup+K%3BNorthen%2C+Trent+R&rft.aulast=Heinemann&rft.aufirst=Joshua&rft.date=2017-01-17&rft.volume=17&rft.issue=2&rft.spage=323&rft.isbn=&rft.btitle=&rft.title=Lab+on+a+chip&rft.issn=1473-0189&rft_id=info:doi/10.1039%2Fc6lc01182a LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-12-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1039/c6lc01182a ER - TY - JOUR T1 - Thirdhand Smoke: New Evidence, Challenges, and Future Directions. AN - 1851694813; 28001376 AB - Thirdhand smoke (THS) is the contamination that persists after secondhand tobacco smoke has been emitted into air. It refers to the tobacco-related gases and particles that become embedded in materials, such as the carpet, walls, furniture, blankets, and toys. THS is not strictly smoke, but chemicals that adhere to surfaces from which they can be released back into the air, undergo chemical transformations and/or accumulate. Currently, the hazards of THS are not as well documented as the hazards of secondhand smoke (SHS). In this Perspective, we describe the distribution and chemical changes that occur as SHS is transformed into THS, studies of environmental contamination by THS, human exposure studies, toxicology studies using animal models and in vitro systems, possible approaches for avoiding exposure, remediation of THS contamination, and priorities for further research. JF - Chemical research in toxicology AU - Jacob, Peyton AU - Benowitz, Neal L AU - Destaillats, Hugo AU - Gundel, Lara AU - Hang, Bo AU - Martins-Green, Manuela AU - Matt, Georg E AU - Quintana, Penelope J E AU - Samet, Jonathan M AU - Schick, Suzaynn F AU - Talbot, Prue AU - Aquilina, Noel J AU - Hovell, Melbourne F AU - Mao, Jian-Hua AU - Whitehead, Todd P AD - Division of Clinical Pharmacology and Experimental Therapeutics, Departments of Psychiatry and Medicine, University of California , San Francisco, California 94143, United States. ; Division of Clinical Pharmacology and Experimental Therapeutics, Medical Service, Departments of Medicine, and Bioengineering & Therapeutic Sciences, University of California , San Francisco, California 94143, United States. ; Indoor Environment Group, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States. ; Biological Systems & Engineering, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States. ; Department of Cell Biology and Neuroscience, University of California Riverside 92521, United States. ; Department of Psychology, San Diego State University , San Diego, California 92182, United States. ; Graduate School of Public Health, San Diego State University , San Diego, California 92182, United States. ; Department of Preventive Medicine, The Keck School of Medicine, University of Southern California , Los Angeles, California 90089, United States. ; Division of Occupational and Environmental Medicine, School of Medicine, University of California , San Francisco, California 94143, United States. ; Department of Geosciences, University of Malta , Msida, MSD 2080, Malta. ; The Center for Integrative Research on Childhood Leukemia and the Environment, School of Public Health, University of California , Berkeley, 94704, United States. Y1 - 2017/01/17/ PY - 2017 DA - 2017 Jan 17 SP - 270 EP - 294 VL - 30 IS - 1 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1851694813?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+research+in+toxicology&rft.atitle=Thirdhand+Smoke%3A+New+Evidence%2C+Challenges%2C+and+Future+Directions.&rft.au=Jacob%2C+Peyton%3BBenowitz%2C+Neal+L%3BDestaillats%2C+Hugo%3BGundel%2C+Lara%3BHang%2C+Bo%3BMartins-Green%2C+Manuela%3BMatt%2C+Georg+E%3BQuintana%2C+Penelope+J+E%3BSamet%2C+Jonathan+M%3BSchick%2C+Suzaynn+F%3BTalbot%2C+Prue%3BAquilina%2C+Noel+J%3BHovell%2C+Melbourne+F%3BMao%2C+Jian-Hua%3BWhitehead%2C+Todd+P&rft.aulast=Jacob&rft.aufirst=Peyton&rft.date=2017-01-17&rft.volume=30&rft.issue=1&rft.spage=270&rft.isbn=&rft.btitle=&rft.title=Chemical+research+in+toxicology&rft.issn=1520-5010&rft_id=info:doi/10.1021%2Facs.chemrestox.6b00343 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-12-21 N1 - Date revised - 2017-02-28 N1 - Last updated - 2017-02-28 DO - http://dx.doi.org/10.1021/acs.chemrestox.6b00343 ER - TY - JOUR T1 - Targeted clinical control of trauma patient coagulation through a thrombin dynamics model AN - 1859487678; PQ0004016387 AB - We present a methodology for personalizing the clinical treatment of severely injured patients with acute traumatic coagulopathy (ATC), an endogenous biological response of impaired coagulation that occurs early after trauma and shock and that is associated with increased bleeding, morbidity, and mortality. Despite biological characterization of ATC, it is not easily or rapidly diagnosed, not always captured by slow laboratory testing, and not accurately represented by coagulation models. This lack of knowledge, combined with the inherent time pressures of trauma treatment, forces surgeons to treat ATC patients according to empirical resuscitation protocols. These entail transfusing large volumes of poorly characterized, nontargeted blood products that are not tailored to an individual, the injury, or coagulation dynamics. Massive transfusion mortality remains at 40 to 70% in the best of trauma centers. As an alternative to blunt treatments, time-consuming tests, and mechanistic models, we used dynamical systems theory to create a simple, biologically meaningful, and highly accurate model that (i) quickly forecasts a driver of downstream coagulation, thrombin concentration after tissue factor stimulation, using rapidly measurable concentrations of blood protein factors and (ii) determines the amounts of additional coagulation factors needed to rectify the predicted thrombin dynamics and potentially remedy ATC. We successfully demonstrate in vitro thrombin control consistent with the model. Compared to another model, we decreased the mean errors in two key trauma patient parameters: peak thrombin concentration after tissue factor stimulation and the time until this peak occurs. Our methodology helps to advance individualized resuscitation of trauma-induced coagulation deficits. JF - Science Translational Medicine AU - Menezes, Amor A AU - Vilardi, Ryan F AU - Arkin, Adam P AU - Cohen, Mitchell J AD - California Institute for Quantitative Biosciences at University of California, Berkeley, 2151 Berkeley Way, Berkeley, CA 94704-5230, USA, aparkin@lbl.gov Y1 - 2017/01/04/ PY - 2017 DA - 2017 Jan 04 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 United States VL - 9 IS - 371 SN - 1946-6234, 1946-6234 KW - Biotechnology and Bioengineering Abstracts KW - Thrombin KW - Translation KW - Blood products KW - Mortality KW - Tissue factor KW - Coagulation KW - Injuries KW - Coagulation factors KW - Transfusion KW - Morbidity KW - Models KW - Trauma KW - Blood KW - Shock KW - Bleeding KW - Pressure KW - W 30950:Waste Treatment & Pollution Clean-up UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859487678?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+Translational+Medicine&rft.atitle=Targeted+clinical+control+of+trauma+patient+coagulation+through+a+thrombin+dynamics+model&rft.au=Menezes%2C+Amor+A%3BVilardi%2C+Ryan+F%3BArkin%2C+Adam+P%3BCohen%2C+Mitchell+J&rft.aulast=Menezes&rft.aufirst=Amor&rft.date=2017-01-04&rft.volume=9&rft.issue=371&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Science+Translational+Medicine&rft.issn=19466234&rft_id=info:doi/10.1126%2Fscitranslmed.aaf5045 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-01-01 N1 - Last updated - 2017-02-15 N1 - SubjectsTermNotLitGenreText - Thrombin; Mortality; Blood products; Translation; Injuries; Coagulation; Tissue factor; Coagulation factors; Transfusion; Morbidity; Trauma; Models; Blood; Shock; Bleeding; Pressure DO - http://dx.doi.org/10.1126/scitranslmed.aaf5045 ER - TY - JOUR T1 - Glycosylation of inositol phosphorylceramide sphingolipids is required for normal growth and reproduction in Arabidopsis AN - 1872838560; PQ0004098342 AB - Sphingolipids are a major component of plant plasma membranes and endomembranes, and mediate a diverse range of biological processes. Study of the highly glycosylated glycosyl inositol phosphorylceramide (GIPC) sphingolipids has been slow as a result of challenges associated with the extractability of GIPCs, and their functions in the plant remain poorly characterized. We recently discovered an Arabidopsis GIPC glucuronosyltransferase, INOSITOL PHOSPHORYLCERAMIDE GLUCURONOSYLTRANSFERASE 1 (IPUT1), which is the first enzyme in the GIPC glycosylation pathway. Plants homozygous for the iput1 loss-of-function mutation were unobtainable, and so the developmental effects of reduced GIPC glucuronosylation could not be analyzed in planta. Using a pollen-specific rescue construct, we have here isolated homozygous iput1 mutants. The iput1 mutants show severe dwarfism, compromised pollen tube guidance, and constitutive activation of salicyclic acid-mediated defense pathways. The mutants also possess reduced GIPCs, increased ceramides, and an increased incorporation of short-chain fatty acids and dihydroxylated bases into inositol phosphorylceramides and GIPCs. The assignment of a direct role for GIPC glycan head groups in the impaired processes in iput1 mutants is complicated by the vast compensatory changes in the sphingolipidome; however, our results reveal that the glycosylation steps of GIPC biosynthesis are important regulated components of sphingolipid metabolism. This study corroborates previously suggested roles for GIPC glycans in plant growth and defense, suggests important roles for them in reproduction and demonstrates that the entire sphingolipidome is sensitive to their status. Significance Statement Sphingolipids are a major component of plant plasma membranes and endomembranes. Glycosphingolipids known as glycosyl inositol phosphorylceramides (GIPCs) are abundant, but almost nothing is known about the biological functions of the complex sugar headgroups on these lipids. Here, we use an Arabidopsis thaliana mutant impaired in synthesizing GIPC headgroups to show that many biological processes-from growth to reproduction to immunity-depend on these important glycans. JF - Plant Journal AU - Tartaglio, Virginia AU - Rennie, Emilie A AU - Cahoon, Rebecca AU - Wang, George AU - Baidoo, Edward AU - Mortimer, Jennifer C AU - Cahoon, Edgar B AU - Scheller, Henrik V AD - Joint BioEnergy Institute, Emeryville, CA, 94608, USA. Y1 - 2017/01// PY - 2017 DA - January 2017 SP - 278 EP - 290 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 89 IS - 2 SN - 0960-7412, 0960-7412 KW - Biotechnology and Bioengineering Abstracts UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1872838560?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Journal&rft.atitle=Glycosylation+of+inositol+phosphorylceramide+sphingolipids+is+required+for+normal+growth+and+reproduction+in+Arabidopsis&rft.au=Tartaglio%2C+Virginia%3BRennie%2C+Emilie+A%3BCahoon%2C+Rebecca%3BWang%2C+George%3BBaidoo%2C+Edward%3BMortimer%2C+Jennifer+C%3BCahoon%2C+Edgar+B%3BScheller%2C+Henrik+V&rft.aulast=Tartaglio&rft.aufirst=Virginia&rft.date=2017-01-01&rft.volume=89&rft.issue=2&rft.spage=278&rft.isbn=&rft.btitle=&rft.title=Plant+Journal&rft.issn=09607412&rft_id=info:doi/10.1111%2Ftpj.13382 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-03-01 N1 - Last updated - 2017-03-01 DO - http://dx.doi.org/10.1111/tpj.13382 ER - TY - JOUR T1 - A review of Ni-based layered oxides for rechargeable Li-ion batteries AN - 1868337834; PQ0004044999 AB - The portable electronic market, vehicle electrification (electric vehicles or EVs) and grid electricity storage impose strict performance requirements on Li-ion batteries, the energy storage device of choice, for these demanding applications. Higher energy density than currently available is needed for these batteries, but a limited choice of materials for cathodes remains a bottleneck. Layered lithium metal oxides, particularly those with high Ni content, hold the greatest promise for high energy density Li-ion batteries because of their unique performance characteristics as well as for cost and availability considerations. In this article, we review Ni-based layered oxide materials as cathodes for high-energy Li-ion batteries. The scope of the review covers an extended chemical space, including traditional stoichiometric layered compounds and those containing two lithium ions per formula unit (with potentially even higher energy density), primarily from a materials design perspective. An in-depth understanding of the composition-structure-property map for each class of materials will be highlighted as well. The ultimate goal is to enable the discovery of new battery materials by integrating known wisdom with new principles of design, and unconventional experimental approaches (e.g., combinatorial chemistry). JF - Journal of materials chemistry. A, Materials for energy and sustainability AU - Xu, Jing AU - Lin, Feng AU - Doeff, Marca M AU - Tong, Wei AD - Energy Storage and Distributed Resources Division; Lawrence Berkeley National Laboratory; Berkeley; CA 94720; USA Y1 - 2017/01// PY - 2017 DA - January 2017 SP - 874 EP - 901 PB - Royal Society of Chemistry VL - 5 IS - 3 SN - 2050-7488, 2050-7488 KW - Environment Abstracts KW - Storage KW - Ions KW - Metals KW - Batteries KW - Energy KW - Lithium KW - Sustainability KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1868337834?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+materials+chemistry.+A%2C+Materials+for+energy+and+sustainability&rft.atitle=A+review+of+Ni-based+layered+oxides+for+rechargeable+Li-ion+batteries&rft.au=Xu%2C+Jing%3BLin%2C+Feng%3BDoeff%2C+Marca+M%3BTong%2C+Wei&rft.aulast=Xu&rft.aufirst=Jing&rft.date=2017-01-01&rft.volume=5&rft.issue=3&rft.spage=874&rft.isbn=&rft.btitle=&rft.title=Journal+of+materials+chemistry.+A%2C+Materials+for+energy+and+sustainability&rft.issn=20507488&rft_id=info:doi/10.1039%2Fc6ta07991a LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-02-01 N1 - Number of references - 277 N1 - Last updated - 2017-03-01 N1 - SubjectsTermNotLitGenreText - Storage; Metals; Ions; Batteries; Energy; Sustainability; Lithium DO - http://dx.doi.org/10.1039/c6ta07991a ER - TY - JOUR T1 - Health benefits and costs of filtration interventions that reduce indoor exposure to PM2.5 during wildfires AN - 1859495963; PQ0003987183 AB - Increases in hospital admissions and deaths are associated with increases in outdoor air particles during wildfires. This analysis estimates the health benefits expected if interventions had improved particle filtration in homes in Southern California during a 10-day period of wildfire smoke exposure. Economic benefits and intervention costs are also estimated. The six interventions implemented in all affected houses are projected to prevent 11% to 63% of the hospital admissions and 7% to 39% of the deaths attributable to wildfire particles. The fraction of the population with an admission attributable to wildfire smoke is small, thus, the costs of interventions in all homes far exceeds the economic benefits of reduced hospital admissions. However, the estimated economic value of the prevented deaths exceed or far exceed intervention costs for interventions that do not use portable air cleaners. For the interventions with portable air cleaner use, mortality-related economic benefits exceed intervention costs as long as the cost of the air cleaners, which have a multi-year life, are not attributed to the short wildfire period. Cost effectiveness is improved by intervening only in the homes of the elderly who experience most of the health effects of particles from wildfires. JF - Indoor Air AU - Fisk, W J AU - Chan, W R AD - Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. Y1 - 2017/01// PY - 2017 DA - January 2017 SP - 191 EP - 204 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 27 IS - 1 SN - 0905-6947, 0905-6947 KW - Toxicology Abstracts; Environment Abstracts KW - Particle size KW - Mortality KW - Pollutant removal KW - Death KW - Houses KW - Housing KW - Intervention KW - Particulates KW - Emission control equipment KW - Smoke KW - Filtration KW - Wildfire KW - Air purification KW - INE, USA, California KW - Economics KW - Residential areas KW - Geriatrics KW - Air cleaners KW - Hospitals KW - X 24300:Methods KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859495963?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Indoor+Air&rft.atitle=Health+benefits+and+costs+of+filtration+interventions+that+reduce+indoor+exposure+to+PM2.5+during+wildfires&rft.au=Fisk%2C+W+J%3BChan%2C+W+R&rft.aulast=Fisk&rft.aufirst=W&rft.date=2017-01-01&rft.volume=27&rft.issue=1&rft.spage=191&rft.isbn=&rft.btitle=&rft.title=Indoor+Air&rft.issn=09056947&rft_id=info:doi/10.1111%2Fina.12285 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-01-01 N1 - Last updated - 2017-02-15 N1 - SubjectsTermNotLitGenreText - Smoke; Houses; Filtration; Death; Wildfire; Economics; Geriatrics; Hospitals; Particle size; Pollutant removal; Mortality; Housing; Intervention; Particulates; Emission control equipment; Air purification; Residential areas; Air cleaners; INE, USA, California DO - http://dx.doi.org/10.1111/ina.12285 ER - TY - JOUR T1 - Catalytic transfer hydrogenolysis of ionic liquid processed biorefinery lignin to phenolic compounds AN - 1859485022; PQ0004010124 AB - Lignocellulosic biomass has the potential to play a significant role in the global bioeconomy for the production of renewable fuels and chemicals. It has been estimated that there are roughly a billion tons of lignocellulose available annually in the United States alone. Valorization of residual lignin streams generated from lignocellulosic biorefineries is key for economic viability and sustainability. In this work, catalytic transfer hydrogenolysis using isopropyl alcohol (IPA) as a hydrogen-donor solvent was employed at 300 degree C to valorize lignin-enriched residues obtained from an ionic liquid (IL) conversion process. This process results in high liquid yields (65.5 wt%) with a significant amount of monomers present (27 wt%) and low char formation. Compositional analysis of the process streams indicates that alkyl-substituted phenols are the main products. Lignin depolymerization was enhanced at longer reaction times and in the presence of Ru/C, producing more, low molecular weight products with a greater extent of alkylation on the aromatic rings. This work suggests that residual lignin fractions from IL-based lignocellulosic conversion technologies can be depolymerized to value-added products and low molecular weight platform chemicals for the renewable fuels and chemicals sector. JF - Green Chemistry AU - Kim, Kwang Ho AU - Simmons, Blake A AU - Singh, Seema AD - Biomass Pretreatment; Joint BioEnergy Institute; Emeryville; CA; USA; +1 925 294 4551 Y1 - 2017/01// PY - 2017 DA - January 2017 SP - 215 EP - 224 PB - Royal Society of Chemistry, c/o Springer-Verlag New York Inc. Secaucus New Jersey 07096 2485 United States VL - 19 IS - 1 SN - 1463-9262, 1463-9262 KW - Sustainability Science Abstracts KW - Chemicals KW - Alcohol KW - Residues KW - Solvents KW - Biomass KW - Sustainability KW - Phenols KW - USA KW - Renewable energy KW - Economics KW - Green development KW - Technology KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859485022?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Green+Chemistry&rft.atitle=Catalytic+transfer+hydrogenolysis+of+ionic+liquid+processed+biorefinery+lignin+to+phenolic+compounds&rft.au=Kim%2C+Kwang+Ho%3BSimmons%2C+Blake+A%3BSingh%2C+Seema&rft.aulast=Kim&rft.aufirst=Kwang&rft.date=2017-01-01&rft.volume=19&rft.issue=1&rft.spage=215&rft.isbn=&rft.btitle=&rft.title=Green+Chemistry&rft.issn=14639262&rft_id=info:doi/10.1039%2Fc6gc02473d LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-01-01 N1 - Number of references - 40 N1 - Last updated - 2017-02-15 N1 - SubjectsTermNotLitGenreText - Chemicals; Alcohol; Residues; Renewable energy; Green development; Economics; Solvents; Biomass; Phenols; Sustainability; Technology; USA DO - http://dx.doi.org/10.1039/c6gc02473d ER - TY - JOUR T1 - Signaling Cross Talk between TGF-[beta]/Smad and Other Signaling Pathways AN - 1859481031; PQ0004016392 AB - Cytokines of the transforming growth factor [beta] (TGF-[beta]) family, including TGF-[beta]s, bone morphogenic proteins (BMPs), activins, and Nodal, play crucial roles in embryonic development and adult tissue homeostasis by regulating cell proliferation, survival, and differentiation, as well as stem-cell self-renewal and lineage-specific differentiation. Smad proteins are critical downstream mediators of these signaling activities. In addition to regulating the transcription of direct target genes of TGF-[beta], BMP, activin, or Nodal, Smad proteins also participate in extensive cross talk with other signaling pathways, often in a cell-type- or developmental stage-specific manner. These combinatorial signals often produce context-, time-, and location-dependent biological outcomes that are critical for development. This review discusses recent progress in our understanding of the cross talk between Smad proteins and signaling pathways of Wnt, Notch, Hippo, Hedgehog (Hh), mitogen-activated protein (MAP), kinase, phosphoinositide 3-kinase (PI3K)-Akt, nuclear factor [kappa]B (NF-[kappa]B), and Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathways. JF - Cold Spring Harbor Perspectives in Biology AU - Luo, Kunxin AD - Department of Molecular and Cell Biology, University of California, Berkeley, and Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, kluo@berkeley.edu Y1 - 2017/01// PY - 2017 DA - January 2017 PB - Cold Spring Harbor Laboratory Press, Fulfillment & Distribution Dept. Woodbury NY 11797-2924 United States VL - 9 IS - 1 SN - 1943-0264, 1943-0264 KW - Biotechnology and Bioengineering Abstracts KW - Cell survival KW - MAP kinase KW - Transcription KW - Homeostasis KW - Smad protein KW - NF- Kappa B protein KW - Janus kinase KW - Notch protein KW - Activin KW - Differentiation KW - Bone morphogenetic proteins KW - Embryogenesis KW - Hedgehog protein KW - Stem cells KW - Transforming growth factor- beta KW - Cytokines KW - phosphoinositides KW - Cell proliferation KW - Signal transduction KW - W 30925:Genetic Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859481031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cold+Spring+Harbor+Perspectives+in+Biology&rft.atitle=Signaling+Cross+Talk+between+TGF-%5Bbeta%5D%2FSmad+and+Other+Signaling+Pathways&rft.au=Luo%2C+Kunxin&rft.aulast=Luo&rft.aufirst=Kunxin&rft.date=2017-01-01&rft.volume=9&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Cold+Spring+Harbor+Perspectives+in+Biology&rft.issn=19430264&rft_id=info:doi/10.1101%2Fcshperspect.a022137 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-01-01 N1 - Last updated - 2017-02-15 N1 - SubjectsTermNotLitGenreText - Cell survival; MAP kinase; Transcription; Homeostasis; Smad protein; Janus kinase; NF- Kappa B protein; Activin; Notch protein; Differentiation; Stem cells; Hedgehog protein; Embryogenesis; Bone morphogenetic proteins; Transforming growth factor- beta; phosphoinositides; Cytokines; Cell proliferation; Signal transduction DO - http://dx.doi.org/10.1101/cshperspect.a022137 ER - TY - JOUR T1 - Engineering glucose metabolism of Escherichia coli under nitrogen starvation AN - 1859469998; PQ0004012835 AB - A major aspect of microbial metabolic engineering is the development of chassis hosts that have favorable global metabolic phenotypes, and can be further engineered to produce a variety of compounds. In this work, we focus on the problem of decoupling growth and production in the model bacterium Escherichia coli, and in particular on the maintenance of active metabolism during nitrogen-limited stationary phase. We find that by overexpressing the enzyme PtsI, a component of the glucose uptake system that is inhibited by alpha -ketoglutarate during nitrogen limitation, we are able to achieve a fourfold increase in metabolic rates. Alternative systems were also tested: chimeric PtsI proteins hypothesized to be insensitive to alpha -ketoglutarate did not improve metabolic rates under the conditions tested, whereas systems based on the galactose permease GalP suffered from energy stress and extreme sensitivity to expression level. Overexpression of PtsI is likely to be a useful arrow in the metabolic engineer's quiver as productivity of engineered pathways becomes limited by central metabolic rates during stationary phase production processes. JF - NPJ Systems Biology and Applications AU - Chubukov, Victor AU - Desmarais, John James AU - Wang, George AU - Chan, Leanne Jade G AU - Baidoo, Edward EK AU - Petzold, Christopher J AU - Keasling, Jay D AU - Mukhopadhyay, Aindrila AD - Joint BioEnergy Institute, Emeryville, CA, USA; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2017/01// PY - 2017 DA - January 2017 SP - 16035 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 3 SN - 2056-7189, 2056-7189 KW - Microbiology Abstracts B: Bacteriology; Immunology Abstracts KW - Galactose KW - Starvation KW - Metabolic rate KW - permease KW - Stress KW - Enzymes KW - metabolic engineering KW - Glucose metabolism KW - Models KW - stationary phase KW - Energy KW - Escherichia coli KW - Nitrogen KW - J 02320:Cell Biology KW - F 06910:Microorganisms & Parasites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859469998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=NPJ+Systems+Biology+and+Applications&rft.atitle=Engineering+glucose+metabolism+of+Escherichia+coli+under+nitrogen+starvation&rft.au=Chubukov%2C+Victor%3BDesmarais%2C+John+James%3BWang%2C+George%3BChan%2C+Leanne+Jade+G%3BBaidoo%2C+Edward+EK%3BPetzold%2C+Christopher+J%3BKeasling%2C+Jay+D%3BMukhopadhyay%2C+Aindrila&rft.aulast=Chubukov&rft.aufirst=Victor&rft.date=2017-01-01&rft.volume=3&rft.issue=&rft.spage=16035&rft.isbn=&rft.btitle=&rft.title=NPJ+Systems+Biology+and+Applications&rft.issn=20567189&rft_id=info:doi/10.1038%2Fnpjsba.2016.35 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-01-01 N1 - Last updated - 2017-02-15 N1 - SubjectsTermNotLitGenreText - Starvation; Galactose; stationary phase; Energy; Metabolic rate; metabolic engineering; Enzymes; Stress; permease; Glucose metabolism; Models; Nitrogen; Escherichia coli DO - http://dx.doi.org/10.1038/npjsba.2016.35 ER - TY - JOUR T1 - Identifying chemicals of concern in hydraulic fracturing fluids used for oil production. AN - 1835447311; 27743793 AB - Chemical additives used for hydraulic fracturing and matrix acidizing of oil reservoirs were reviewed and priority chemicals of concern needing further environmental risk assessment, treatment demonstration, or evaluation of occupational hazards were identified. We evaluated chemical additives used for well stimulation in California, the third largest oil producing state in the USA, by the mass and frequency of use, as well as toxicity. The most frequently used chemical additives in oil development were gelling agents, cross-linkers, breakers, clay control agents, iron and scale control agents, corrosion inhibitors, biocides, and various impurities and product stabilizers used as part of commercial mixtures. Hydrochloric and hydrofluoric acids, used for matrix acidizing and other purposes, were reported infrequently. A large number and mass of solvents and surface active agents were used, including quaternary ammonia compounds (QACs) and nonionic surfactants. Acute toxicity was evaluated and many chemicals with low hazard to mammals were identified as potentially hazardous to aquatic environments. Based on an analysis of quantities used, toxicity, and lack of adequate hazard evaluation, QACs, biocides, and corrosion inhibitors were identified as priority chemicals of concern that deserve further investigation. JF - Environmental pollution (Barking, Essex : 1987) AU - Stringfellow, William T AU - Camarillo, Mary Kay AU - Domen, Jeremy K AU - Sandelin, Whitney L AU - Varadharajan, Charuleka AU - Jordan, Preston D AU - Reagan, Matthew T AU - Cooley, Heather AU - Heberger, Matthew G AU - Birkholzer, Jens T AD - Earth & Environmental Sciences Area, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA; Ecological Engineering Research Program, School of Engineering & Computer Science, University of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, USA. Electronic address: wstringfellow@lbl.gov. ; Ecological Engineering Research Program, School of Engineering & Computer Science, University of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, USA. ; Earth & Environmental Sciences Area, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA. ; Pacific Institute, 654 13th Street, Preservation Park, Oakland, CA 94612, USA. Y1 - 2017/01// PY - 2017 DA - January 2017 SP - 413 EP - 420 VL - 220 KW - Disinfectants KW - 0 KW - Index Medicus KW - Produced water KW - Corrosion inhibitors KW - Biocides KW - Oil production KW - Well stimulation KW - Hydraulic fracturing KW - California KW - Animals KW - Humans KW - Oil and Gas Fields KW - Risk Assessment KW - Hydraulic Fracking KW - Environmental Monitoring KW - Extraction and Processing Industry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1835447311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.atitle=Identifying+chemicals+of+concern+in+hydraulic+fracturing+fluids+used+for+oil+production.&rft.au=Stringfellow%2C+William+T%3BCamarillo%2C+Mary+Kay%3BDomen%2C+Jeremy+K%3BSandelin%2C+Whitney+L%3BVaradharajan%2C+Charuleka%3BJordan%2C+Preston+D%3BReagan%2C+Matthew+T%3BCooley%2C+Heather%3BHeberger%2C+Matthew+G%3BBirkholzer%2C+Jens+T&rft.aulast=Stringfellow&rft.aufirst=William&rft.date=2017-01-01&rft.volume=220&rft.issue=&rft.spage=413&rft.isbn=&rft.btitle=&rft.title=Environmental+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.issn=1873-6424&rft_id=info:doi/10.1016%2Fj.envpol.2016.09.082 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2017-02-24 N1 - Date created - 2016-10-16 N1 - Date revised - 2017-02-28 N1 - Last updated - 2017-02-28 DO - http://dx.doi.org/10.1016/j.envpol.2016.09.082 ER - TY - JOUR T1 - Visualizing subsurface defects in graphite by acoustic atomic force microscopy. AN - 1826670193; 27087240 AB - We describe a versatile platform, which combines atomic force acoustic microscopy, ultrasonic atomic force microscopy and heterodyne force microscopy. The AFM system can enable in-situ switching among these operation modes flexibly and thus benefit the discrimination of differences in mechanical properties and buried subsurface nanostructures. We demonstrate the potential of this platform for visualizing the subsurface defects of graphite. Our results show that tiny topographic edges are enhanced in acoustic oscillation signals whilst embedded defects and inhomogeneous in mechanical properties are made clearly distinguishable. The possibility of detecting subsurface defects in few-layer graphene is further discussed with first-principles calculations. Microsc. Res. Tech. 80:66-74, 2017. © 2016 Wiley Periodicals, Inc. JF - Microscopy research and technique AU - Wang, Tian AU - Ma, Chengfu AU - Hu, Wei AU - Chen, Yuhang AU - Chu, Jiaru AD - Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China. ; Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, California, 94720, USA. Y1 - 2017/01// PY - 2017 DA - January 2017 SP - 66 EP - 74 VL - 80 IS - 1 KW - subsurface nanoimaging KW - graphite KW - heterodyne force microscopy KW - atomic force acoustic microscopy KW - ultrasonic atomic force microscopy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1826670193?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microscopy+research+and+technique&rft.atitle=Visualizing+subsurface+defects+in+graphite+by+acoustic+atomic+force+microscopy.&rft.au=Wang%2C+Tian%3BMa%2C+Chengfu%3BHu%2C+Wei%3BChen%2C+Yuhang%3BChu%2C+Jiaru&rft.aulast=Wang&rft.aufirst=Tian&rft.date=2017-01-01&rft.volume=80&rft.issue=1&rft.spage=66&rft.isbn=&rft.btitle=&rft.title=Microscopy+research+and+technique&rft.issn=1097-0029&rft_id=info:doi/10.1002%2Fjemt.22668 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-04-18 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1002/jemt.22668 ER - TY - JOUR T1 - Impacts of elevated dissolved CO (sub 2) on a shallow ground water system; reactive transport modeling of a controlled release field test AN - 1873349704; 2017-015596 AB - One of the risks that CO (sub 2) geological sequestration imposes on the environment is the impact of potential CO (sub 2) /brine leakage on shallow groundwater. The reliability of reactive transport models predicting the response of groundwater to CO (sub 2) leakage depends on a thorough understanding of the relevant chemical processes and key parameters affecting dissolved CO (sub 2) transport and reaction. Such understanding can be provided by targeted field tests integrated with reactive transport modeling. A controlled-release field experiment was conducted in Mississippi to study the CO (sub 2) -induced geochemical changes in a shallow sandy aquifer at about 50 m depth. The field test involved a dipole system in which the groundwater was pumped from one well, saturated with CO (sub 2) at the pressure corresponding to the hydraulic pressure of the aquifer, and then re-injected into the same aquifer using a second well. Groundwater samples were collected for chemical analyses from four monitoring wells before, during and after the dissolved CO (sub 2) was injected. In this paper, we present reactive transport models used to interpret the observed changes in metal concentrations in these groundwater samples. A reasonable agreement between simulated and measured concentrations indicates that the chemical response in the aquifer can be interpreted using a conceptual model that encompasses two main features: (a) a fast-reacting but limited pool of reactive minerals that responds quickly to changes in pH and causes a pulse-like concentration change, and (b) a slow-reacting but essentially unlimited mineral pool that yields rising metal concentrations upon decreased groundwater velocities after pumping and injection stopped. During the injection, calcite dissolution and Ca-driven cation exchange reactions contribute to a sharp pulse in concentrations of Ca, Ba, Mg, Mn, K, Li, Na and Sr, whereas desorption reactions control a similar increase in Fe concentrations. After the injection and pumping stops and the groundwater flow rate decreases, the dissolution of relatively slow reacting minerals such as plagioclase drives the rising concentrations of alkali and alkaline earth metals observed at later stages of the test, whereas the dissolution of amorphous iron sulfide causes slowly increasing Fe concentrations. JF - Chemical Geology AU - Zheng, Liange AU - Spycher, Nicolas AU - Bianchi, Marco AU - Pugh, John D AU - Varadharajan, Charuleka AU - Tinnacher, Ruth M AU - Birkholzer, Jens T AU - Nico, Peter AU - Trautz, Robert C Y1 - 2016/12/30/ PY - 2016 DA - 2016 Dec 30 SP - 117 EP - 132 PB - Elsevier, Amsterdam VL - 447 SN - 0009-2541, 0009-2541 KW - United States KW - solute transport KW - water quality KW - contaminant plumes KW - observation wells KW - gas storage KW - simulation KW - drinking water KW - reservoir rocks KW - ground water KW - carbon dioxide KW - reactivity KW - transport KW - sediments KW - trend-surface analysis KW - water pollution KW - pH KW - Jackson County Mississippi KW - sand KW - North America KW - experimental studies KW - monitoring KW - carbon sequestration KW - marshes KW - clastic sediments KW - statistical analysis KW - Mississippi KW - solutes KW - pollution KW - Pascagoula River basin KW - Gulf Coastal Plain KW - aquifers KW - models KW - gas injection KW - mires KW - salt marshes KW - metals KW - brines KW - testing KW - shallow aquifers KW - reservoir properties KW - water resources KW - field studies KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873349704?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+environmental+microbiology&rft.atitle=Use+of+nonionic+surfactants+for+improvement+of+terpene+production+in+Saccharomyces+cerevisiae.&rft.au=Kirby%2C+James%3BNishimoto%2C+Minobu%3BChow%2C+Ruthie+W+N%3BPasumarthi%2C+Venkata+N%3BChan%2C+Rossana%3BChan%2C+Leanne+Jade+G%3BPetzold%2C+Christopher+J%3BKeasling%2C+Jay+D&rft.aulast=Kirby&rft.aufirst=James&rft.date=2014-11-01&rft.volume=80&rft.issue=21&rft.spage=6685&rft.isbn=&rft.btitle=&rft.title=Applied+and+environmental+microbiology&rft.issn=1098-5336&rft_id=info:doi/10.1128%2FAEM.02155-14 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2017-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2017-03-02 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - aquifers; brines; carbon dioxide; carbon sequestration; clastic sediments; contaminant plumes; drinking water; experimental studies; field studies; gas injection; gas storage; ground water; Gulf Coastal Plain; Jackson County Mississippi; marshes; metals; mires; Mississippi; models; monitoring; North America; observation wells; Pascagoula River basin; pH; pollution; reactivity; reservoir properties; reservoir rocks; salt marshes; sand; sediments; shallow aquifers; simulation; solute transport; solutes; statistical analysis; testing; transport; trend-surface analysis; United States; water pollution; water quality; water resources DO - http://dx.doi.org/10.1016/j.chemgeo.2016.10.027 ER - TY - JOUR T1 - Influence of etch pit development on the surface area and dissolution kinetics of the orthoclase (001) surface AN - 1873348575; 2017-015594 AB - The (001) orthoclase surface was dissolved at 180 degrees C and at far from equilibrium conditions with an alkaline solution (pH (sub 180 degrees C) = 9) in a titanium open flow reactor. Vertical scanning interferometer (VSI) and atomic force microscope (AFM) surface monitoring were periodically used during the reaction process in order to quantify the surface topography evolution. The dissolution of the (001) orthoclase face occurs with the formation of diamond shape etch pits. Diamond pit diagonals are parallel to the [100] and [010] axes, and the pit walls are parallel to (6 5 6), (6 5 6), (6 5 1 1) and (6 5 1 1) planes. The etch pit size and global surface retreat of the (001) surface were found to increase linearly with time. Based on statistical treatments of etch pit development monitoring by AFM, we designed a numerical model aimed at reproducing and quantifying the total surface evolution. Numerical results show that the stabilization of etch pits doubles the calculated dissolution rate, partly due to the intrinsically higher reactivity of pit walls, consistent with a dissolution process in line with the periodic bond chain (PBC) theory. In addition, normalizing the dissolution rate by the initial surface area of the (001) orthoclase surface induces a 20% overestimation of the calculated dissolution rate, while the total surface area of the dissolving face reaches a steady state after a few days of reaction. Additional simulations conducted to assess the impact of defect parameters revealed a weak dependence of the dissolution rate on dislocation density, consistent with previous experimental observations. Overall, the combined effect of the various defect parameters does not affect the dissolution rate by more than an order of magnitude, and probably contributes to a moderate extent to the dispersion of mineral dissolution rate data reported in the literature. JF - Chemical Geology AU - Pollet-Villard, Marion AU - Daval, Damien AU - Fritz, Bertrand AU - Knauss, Kevin G AU - Schaefer, Gerhard AU - Ackerer, Philippe Y1 - 2016/12/30/ PY - 2016 DA - 2016 Dec 30 SP - 79 EP - 92 PB - Elsevier, Amsterdam VL - 447 SN - 0009-2541, 0009-2541 KW - silicates KW - density KW - X-ray diffraction data KW - halogens KW - mass spectra KW - simulation KW - silicon KW - metasomatism KW - atomic force microscopy data KW - major elements KW - alkali feldspar KW - phase equilibria KW - aluminum KW - diamond KW - hydrothermal alteration KW - framework silicates KW - spectra KW - chemical composition KW - kinetics KW - chlorine KW - surface properties KW - experimental studies KW - numerical models KW - statistical analysis KW - alkali metals KW - electron microscopy data KW - native elements KW - solubility KW - sodium KW - alkalic composition KW - ICP mass spectra KW - orthoclase KW - metals KW - mathematical methods KW - steady-state processes KW - potassium KW - crystal chemistry KW - feldspar group KW - SEM data KW - backscattering KW - 01B:Mineralogy of silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873348575?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Influence+of+etch+pit+development+on+the+surface+area+and+dissolution+kinetics+of+the+orthoclase+%28001%29+surface&rft.au=Pollet-Villard%2C+Marion%3BDaval%2C+Damien%3BFritz%2C+Bertrand%3BKnauss%2C+Kevin+G%3BSchaefer%2C+Gerhard%3BAckerer%2C+Philippe&rft.aulast=Pollet-Villard&rft.aufirst=Marion&rft.date=2016-12-30&rft.volume=447&rft.issue=&rft.spage=79&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2Fj.chemgeo.2016.09.038 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2017-01-01 N1 - Number of references - 58 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2017-03-02 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - alkali feldspar; alkali metals; alkalic composition; aluminum; atomic force microscopy data; backscattering; chemical composition; chlorine; crystal chemistry; density; diamond; electron microscopy data; experimental studies; feldspar group; framework silicates; halogens; hydrothermal alteration; ICP mass spectra; kinetics; major elements; mass spectra; mathematical methods; metals; metasomatism; native elements; numerical models; orthoclase; phase equilibria; potassium; SEM data; silicates; silicon; simulation; sodium; solubility; spectra; statistical analysis; steady-state processes; surface properties; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.chemgeo.2016.09.038 ER - TY - JOUR T1 - Loss of Inositol Phosphorylceramide Sphingolipid Mannosylation Induces Plant Immune Responses and Reduces Cellulose Content in Arabidopsis AN - 1868319645; PQ0004037290 AB - Identification and characterization of a putative Arabidopsis sphingolipid glycosyltranferase suggests that glycosylation of these crucial lipids affects cellulose content and plant defense signaling. Glycosylinositol phosphorylceramides (GIPCs) are a class of glycosylated sphingolipids found in plants, fungi, and protozoa. These lipids are abundant in the plant plasma membrane, forming similar to 25% of total plasma membrane lipids. Little is known about the function of the glycosylated headgroup, but two recent studies have indicated that they play a key role in plant signaling and defense. Here, we show that a member of glycosyltransferase family 64, previously named ECTOPICALLY PARTING CELLS1, is likely a Golgi-localized GIPC-specific mannosyl-transferase, which we renamed GIPC MANNOSYL-TRANSFERASE1 (GMT1). Sphingolipid analysis revealed that the Arabidopsis thaliana gmt1 mutant almost completely lacks mannose-carrying GIPCs. Heterologous expression of GMT1 in Saccharomyces cerevisiae and tobacco (Nicotiana tabacum) cv Bright Yellow 2 resulted in the production of non-native mannosylated GIPCs. gmt1 displays a severe dwarfed phenotype and a constitutive hypersensitive response characterized by elevated salicylic acid and hydrogen peroxide levels, similar to that we previously reported for the Golgi-localized, GIPC-specific, GDP-Man transporter GONST1 (Mortimer et al., 2013). Unexpectedly, we show that gmt1 cell walls have a reduction in cellulose content, although other matrix polysaccharides are unchanged. JF - Plant Cell AU - Fang, Lin AU - Ishikawa, Toshiki AU - Rennie, Emilie A AU - Murawska, Gosia M AU - Lao, Jeemeng AU - Yan, Jingwei AU - Tsai, Alex Yi-Lin AU - Baidoo, Edward EK AU - Xu, Jun AU - Keasling, Jay D AU - Demura, Taku AU - Kawai-Yamada, Maki AU - Scheller, Henrik V AU - Mortimer, Jenny C AD - Biological Systems and Engineering, Lawrence Berkeley National Laboratory, Berkeley, California 94720, jcmortimer@lbl.gov Y1 - 2016/12/28/ PY - 2016 DA - 2016 Dec 28 SP - 2991 EP - 3004 PB - American Society of Plant Biologists, 15501 Monona Dr. Rockville MD 20855-2768 United States VL - 28 IS - 12 SN - 1040-4651, 1040-4651 KW - Immunology Abstracts; Biotechnology and Bioengineering Abstracts KW - Lipids KW - Fungi KW - Inositol KW - Cellulose KW - Glycosylation KW - Nicotiana tabacum KW - Polysaccharides KW - Salicylic acid KW - Saccharomyces cerevisiae KW - Glycosyltransferase KW - Arabidopsis thaliana KW - Protozoa KW - Plasma membranes KW - Hydrogen peroxide KW - Sphingolipids KW - Hypersensitive response KW - Arabidopsis KW - Immune response KW - Cell walls KW - W 30940:Products UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1868319645?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Cell&rft.atitle=Loss+of+Inositol+Phosphorylceramide+Sphingolipid+Mannosylation+Induces+Plant+Immune+Responses+and+Reduces+Cellulose+Content+in+Arabidopsis&rft.au=Fang%2C+Lin%3BIshikawa%2C+Toshiki%3BRennie%2C+Emilie+A%3BMurawska%2C+Gosia+M%3BLao%2C+Jeemeng%3BYan%2C+Jingwei%3BTsai%2C+Alex+Yi-Lin%3BBaidoo%2C+Edward+EK%3BXu%2C+Jun%3BKeasling%2C+Jay+D%3BDemura%2C+Taku%3BKawai-Yamada%2C+Maki%3BScheller%2C+Henrik+V%3BMortimer%2C+Jenny+C&rft.aulast=Fang&rft.aufirst=Lin&rft.date=2016-12-28&rft.volume=28&rft.issue=12&rft.spage=2991&rft.isbn=&rft.btitle=&rft.title=Plant+Cell&rft.issn=10404651&rft_id=info:doi/10.1105%2Ftpc.16.00186 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-02-01 N1 - Last updated - 2017-03-01 N1 - SubjectsTermNotLitGenreText - Fungi; Lipids; Cellulose; Inositol; Glycosylation; Polysaccharides; Salicylic acid; Glycosyltransferase; Plasma membranes; Protozoa; Sphingolipids; Hydrogen peroxide; Hypersensitive response; Immune response; Cell walls; Arabidopsis thaliana; Arabidopsis; Nicotiana tabacum; Saccharomyces cerevisiae DO - http://dx.doi.org/10.1105/tpc.16.00186 ER - TY - JOUR T1 - Encapsulation of Perovskite Nanocrystals into Macroscale Polymer Matrices: Enhanced Stability and Polarization. AN - 1851293488; 27991752 AB - Lead halide perovskites hold promise for photonic devices, due to their superior optoelectronic properties. However, their use is limited by poor stability and toxicity. We demonstrate enhanced water and light stability of high-surface-area colloidal perovskite nanocrystals by encapsulation of colloidal CsPbBr3 quantum dots into matched hydrophobic macroscale polymeric matrices. This is achieved by mixing the quantum dots with presynthesized high-molecular-weight polymers. We monitor the photoluminescence quantum yield of the perovskite-polymer nanocomposite films under water-soaking for the first time, finding no change even after >4 months of continuous immersion in water. Furthermore, photostability is greatly enhanced in the macroscale polymer-encapsulated nanocrystal perovskites, which sustain >1010 absorption events per quantum dot prior to photodegradation, a significant threshold for potential device use. Control of the quantum dot shape in these thin-film polymer composite enables color tunability via strong quantum-confinement in nanoplates and significant room temperature polarized emission from perovskite nanowires. Not only does the high-molecular-weight polymer protect the perovskites from the environment but also no escaped lead was detected in water that was in contact with the encapsulated perovskites for months. Our ligand-passivated perovskite-macroscale polymer composites provide a robust platform for diverse photonic applications. JF - ACS applied materials & interfaces AU - Raja, Shilpa N AU - Bekenstein, Yehonadav AU - Koc, Matthew A AU - Fischer, Stefan AU - Zhang, Dandan AU - Lin, Liwei AU - Ritchie, Robert O AU - Yang, Peidong AU - Alivisatos, A Paul AD - Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States. Y1 - 2016/12/28/ PY - 2016 DA - 2016 Dec 28 SP - 35523 EP - 35533 VL - 8 IS - 51 KW - light and water stability KW - nanocomposite polarization KW - nanowires and nanoplates KW - photon budget KW - hydrophobic polymer KW - perovskite quantum dot nanocrystals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1851293488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biogeosciences&rft.atitle=Forest+response+to+increased+disturbance+in+the+central+Amazon+and+comparison+to+western+Amazonian+forests&rft.au=Holm%2C+J+A%3BChambers%2C+J+Q%3BCollins%2C+W+D%3BHiguchi%2C+N&rft.aulast=Holm&rft.aufirst=J&rft.date=2014-10-20&rft.volume=11&rft.issue=20&rft.spage=5773&rft.isbn=&rft.btitle=&rft.title=Biogeosciences&rft.issn=17264170&rft_id=info:doi/10.5194%2Fbg-11-5773-2014 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-12-19 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1021/acsami.6b09443 ER - TY - JOUR T1 - Engineering Bacteria to Catabolize the Carbonaceous Component of Sarin: Teaching E. coli to Eat Isopropanol. AN - 1826713464; 27403844 AB - We report an engineered strain of Escherichia coli that catabolizes the carbonaceous component of the extremely toxic chemical warfare agent sarin. Enzymatic decomposition of sarin generates isopropanol waste that, with this engineered strain, is then transformed into acetyl-CoA by enzymatic conversion with a key reaction performed by the acetone carboxylase complex (ACX). We engineered the heterologous expression of the ACX complex from Xanthobacter autotrophicus PY2 to match the naturally occurring subunit stoichiometry and purified the recombinant complex from E. coli for biochemical analysis. Incorporating this ACX complex and enzymes from diverse organisms, we introduced an isopropanol degradation pathway in E. coli, optimized induction conditions, and decoupled enzyme expression to probe pathway bottlenecks. Our engineered E. coli consumed 65% of isopropanol compared to no-cell controls and was able to grow on isopropanol as a sole carbon source. In the process, reconstitution of this large ACX complex (370 kDa) in a system naïve to its structural and mechanistic requirements allowed us to study this otherwise cryptic enzyme in more detail than would have been possible in the less genetically tractable native Xanthobacter system. JF - ACS synthetic biology AU - Brown, Margaret E AU - Mukhopadhyay, Aindrila AU - Keasling, Jay D AD - Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States. Y1 - 2016/12/16/ PY - 2016 DA - 2016 Dec 16 SP - 1485 EP - 1496 VL - 5 IS - 12 KW - acetone carboxylase KW - biodegradation KW - synthetic biology KW - sarin KW - carbon catabolism pathway KW - bioengineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1826713464?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+synthetic+biology&rft.atitle=Engineering+Bacteria+to+Catabolize+the+Carbonaceous+Component+of+Sarin%3A+Teaching+E.+coli+to+Eat+Isopropanol.&rft.au=Brown%2C+Margaret+E%3BMukhopadhyay%2C+Aindrila%3BKeasling%2C+Jay+D&rft.aulast=Brown&rft.aufirst=Margaret&rft.date=2016-12-16&rft.volume=5&rft.issue=12&rft.spage=1485&rft.isbn=&rft.btitle=&rft.title=ACS+synthetic+biology&rft.issn=2161-5063&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-07-27 N1 - Date revised - 2017-02-28 N1 - Last updated - 2017-02-28 ER - TY - JOUR T1 - Two-phase deformation of lower mantle mineral analogs AN - 1863566718; 2017-008710 AB - The lower mantle is estimated to be composed of mostly bridgmanite and a smaller percentage of ferropericlase, yet very little information exists for two-phase deformation of these minerals. To better understand the rheology and active deformation mechanisms of these lower mantle minerals, especially dislocation slip and the development of crystallographic preferred orientation (CPO), we deformed mineral analogs neighborite (NaMgF (sub 3) , iso-structural with bridgmanite) and halite (NaCl, iso-structural with ferropericlase) together in the deformation-DIA at the Advanced Photon Source up to 51% axial shortening. Development of CPO was recorded in situ with X-ray diffraction, and information on microstructural evolution was collected using X-ray microtomography. Results show that when present in as little as 15% volume, the weak phase (NaCl) controls the deformation. Compared to single phase NaMgF (sub 3) samples, samples with just 15% volume NaCl show a reduction of CPO in NaMgF (sub 3) and weakening of the aggregate. Microtomography shows both NaMgF (sub 3) and NaCl form highly interconnected networks of grains. Polycrystal plasticity simulations were carried out to gain insight into slip activity, CPO evolution, and strain and stress partitioning between phases for different synthetic two-phase microstructures. The results suggest that ferropericlase may control deformation in the lower mantle and reduce CPO in bridgmanite, which implies a less viscous lower mantle and helps to explain why the lower mantle is fairly isotropic. JF - Earth and Planetary Science Letters AU - Kaercher, P AU - Miyagi, L AU - Kanitpanyacharoen, W AU - Zepeda-Alarcon, E AU - Wang, Y AU - Parkinson, D AU - Lebensohn, R A AU - De Carlo, F AU - Wenk, H R Y1 - 2016/12/15/ PY - 2016 DA - 2016 Dec 15 SP - 134 EP - 145 PB - Elsevier, Amsterdam VL - 456 SN - 0012-821X, 0012-821X KW - halides KW - fluorides KW - X-ray diffraction data KW - strain KW - microstructure KW - mantle KW - crystal structure KW - neighborite KW - preferred orientation KW - lower mantle KW - rheology KW - chlorides KW - oxides KW - plasticity KW - sodium chloride KW - experimental studies KW - pressure KW - structural analysis KW - stress KW - X-ray microtomography KW - deformation KW - high pressure KW - halite KW - X-ray data KW - viscosity KW - natural analogs KW - anvil cells KW - computed tomography data KW - ferropericlase KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863566718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Two-phase+deformation+of+lower+mantle+mineral+analogs&rft.au=Kaercher%2C+P%3BMiyagi%2C+L%3BKanitpanyacharoen%2C+W%3BZepeda-Alarcon%2C+E%3BWang%2C+Y%3BParkinson%2C+D%3BLebensohn%2C+R+A%3BDe+Carlo%2C+F%3BWenk%2C+H+R&rft.aulast=Kaercher&rft.aufirst=P&rft.date=2016-12-15&rft.volume=456&rft.issue=&rft.spage=134&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2016.09.030 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2017-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2017-02-02 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - anvil cells; chlorides; computed tomography data; crystal structure; deformation; experimental studies; ferropericlase; fluorides; halides; halite; high pressure; lower mantle; mantle; microstructure; natural analogs; neighborite; oxides; plasticity; preferred orientation; pressure; rheology; sodium chloride; strain; stress; structural analysis; viscosity; X-ray data; X-ray diffraction data; X-ray microtomography DO - http://dx.doi.org/10.1016/j.epsl.2016.09.030 ER - TY - JOUR T1 - Cadmium(II) inhibition of human uracil-DNA glycosylase by catalytic water supplantation. AN - 1851284435; 27974818 AB - Toxic metals are known to inhibit DNA repair but the underlying mechanisms of inhibition are still not fully understood. DNA repair enzymes such as human uracil-DNA glycosylase (hUNG) perform the initial step in the base excision repair (BER) pathway. In this work, we showed that cadmium [Cd(II)], a known human carcinogen, inhibited all activity of hUNG at 100 μM. Computational analyses based on 2 μs equilibrium, 1.6 μs steered molecular dynamics (SMD), and QM/MM MD determined that Cd(II) ions entered the enzyme active site and formed close contacts with both D145 and H148, effectively replacing the catalytic water normally found in this position. Geometry refinement by density functional theory (DFT) calculations showed that Cd(II) formed a tetrahedral structure with D145, P146, H148, and one water molecule. This work for the first time reports Cd(II) inhibition of hUNG which was due to replacement of the catalytic water by binding the active site D145 and H148 residues. Comparison of the proposed metal binding site to existing structural data showed that D145:H148 followed a general metal binding motif favored by Cd(II). The identified motif offered structural insights into metal inhibition of other DNA repair enzymes and glycosylases. JF - Scientific reports AU - Gokey, Trevor AU - Hang, Bo AU - Guliaev, Anton B AD - Department of Chemistry and Biochemistry, San Francisco State University, 1600 Holloway Ave, San Francisco, CA 94132, USA. ; Biological Systems and Engineering, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA. Y1 - 2016/12/15/ PY - 2016 DA - 2016 Dec 15 SP - 39137 VL - 6 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1851284435?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Scientific+reports&rft.atitle=Cadmium%28II%29+inhibition+of+human+uracil-DNA+glycosylase+by+catalytic+water+supplantation.&rft.au=Gokey%2C+Trevor%3BHang%2C+Bo%3BGuliaev%2C+Anton+B&rft.aulast=Gokey&rft.aufirst=Trevor&rft.date=2016-12-15&rft.volume=6&rft.issue=&rft.spage=39137&rft.isbn=&rft.btitle=&rft.title=Scientific+reports&rft.issn=2045-2322&rft_id=info:doi/10.1038%2Fsrep39137 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-12-15 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1038/srep39137 ER - TY - JOUR T1 - Root traits explain observed tundra vegetation nitrogen uptake patterns: Implications for trait-based land models AN - 1868341894; PQ0004024227 AB - Ongoing climate warming will likely perturb vertical distributions of nitrogen availability in tundra soils through enhancing nitrogen mineralization and releasing previously inaccessible nitrogen from frozen permafrost soil. However, arctic tundra responses to such changes are uncertain, because of a lack of vertically explicit nitrogen tracer experiments and untested hypotheses of root nitrogen uptake under the stress of microbial competition implemented in land models. We conducted a vertically explicit super(15)N tracer experiment for three dominant tundra species to quantify plant N uptake profiles. Then we applied a nutrient competition model (N-COM), which is being integrated into the ACME Land Model, to explain the observations. Observations using an super(15)N tracer showed that plant N uptake profiles were not consistently related to root biomass density profiles, which challenges the prevailing hypothesis that root density always exerts first-order control on N uptake. By considering essential root traits (e.g., biomass distribution and nutrient uptake kinetics) with an appropriate plant-microbe nutrient competition framework, our model reasonably reproduced the observed patterns of plant N uptake. In addition, we show that previously applied nutrient competition hypotheses in Earth System Land Models fail to explain the diverse plant N uptake profiles we observed. Our results cast doubt on current climate-scale model predictions of arctic plant responses to elevated nitrogen supply under a changing climate and highlight the importance of considering essential root traits in large-scale land models. Finally, we provided suggestions and a short synthesis of data availability for future trait-based land model development. Key Points * Short-term super(15)N tracer experiment informs tundra plant nitrogen uptake patterns * Nutrient competition frameworks currently applied in Earth System Models cannot represent observed patterns * Root biomass, uptake kinetics, and appropriate plant-microbial competition framework are important to predict tundra nitrogen uptake JF - Journal of Geophysical Research. G. Biogeosciences AU - Zhu, Qing AU - Iversen, Colleen M AU - Riley, William J AU - Slette, Ingrid J AU - Vander Stel, Holly M AD - Climate Sciences Department, Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA. Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 3101 EP - 3112 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 12 SN - 2169-8953, 2169-8953 KW - Ecology Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Density KW - Roots KW - Nutrients KW - Framework KW - Biomass KW - PN, Arctic KW - Tracers KW - Tundra KW - Kinetics KW - Absorption KW - Uptake KW - Nutrients (mineral) KW - Nitrogen isotopes KW - Modelling KW - Nitrogen KW - SW 0810:General KW - Q2 09261:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1868341894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research.+G.+Biogeosciences&rft.atitle=Root+traits+explain+observed+tundra+vegetation+nitrogen+uptake+patterns%3A+Implications+for+trait-based+land+models&rft.au=Zhu%2C+Qing%3BIversen%2C+Colleen+M%3BRiley%2C+William+J%3BSlette%2C+Ingrid+J%3BVander+Stel%2C+Holly+M&rft.aulast=Zhu&rft.aufirst=Qing&rft.date=2016-12-01&rft.volume=121&rft.issue=12&rft.spage=3101&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+G.+Biogeosciences&rft.issn=21698953&rft_id=info:doi/10.1002%2F2016JG003554 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-02-01 N1 - Last updated - 2017-02-15 N1 - SubjectsTermNotLitGenreText - Tracers; Roots; Uptake; Framework; Nitrogen isotopes; Nutrients (mineral); Biomass; Nitrogen; Modelling; Density; Kinetics; Tundra; Absorption; Nutrients; PN, Arctic DO - http://dx.doi.org/10.1002/2016JG003554 ER - TY - JOUR T1 - Assessment of the climate commitments and additional mitigation policies of the United States AN - 1868312654; PQ0004023548 AB - Current intended nationally determined contributions (INDCs) are insufficient to meet the Paris Agreement goal of limiting temperature change to between 1.5 and 2.0 degree C above pre-industrial levels, so the effectiveness of existing INDCs will be crucial to further progress. Here we assess the likely range of US greenhouse gas (GHG) emissions in 2025 and whether the US's INDC can be met, on the basis of updated historical and projected estimates. We group US INDC policies into three categories reflecting potential future policies, and model 17 policies across these categories. With all modelled policies included, the upper end of the uncertainty range overlaps with the 2025 INDC target, but the required reductions are not achieved using reference values. Even if all modelled policies are implemented, additional GHG reduction is probably required; we discuss several potential policies. JF - Nature Climate Change AU - Greenblatt, Jeffery B AU - Wei, Max AD - Energy Analysis and Environmental Impacts Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 90-2002, Berkeley, California 94720, USA Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 1090 EP - 1093 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 6 IS - 12 SN - 1758-678X, 1758-678X KW - ASFA 3: Aquatic Pollution & Environmental Quality; Environment Abstracts; Meteorological & Geoastrophysical Abstracts KW - Temperature changes KW - Temperature effects KW - Historical account KW - Policies KW - Geographical distribution KW - Mitigation KW - Public policy and climate KW - Climate change KW - Climate KW - Temperature KW - Greenhouse effect KW - Agreements KW - Uncertainty KW - USA KW - Greenhouse gases KW - M2 551.583:Variations (551.583) KW - Q5 08502:Methods and instruments KW - ENA 20:Weather Modification & Geophysical Change UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1868312654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Climate+Change&rft.atitle=Assessment+of+the+climate+commitments+and+additional+mitigation+policies+of+the+United+States&rft.au=Greenblatt%2C+Jeffery+B%3BWei%2C+Max&rft.aulast=Greenblatt&rft.aufirst=Jeffery&rft.date=2016-12-01&rft.volume=6&rft.issue=12&rft.spage=1090&rft.isbn=&rft.btitle=&rft.title=Nature+Climate+Change&rft.issn=1758678X&rft_id=info:doi/10.1038%2Fnclimate3125 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-02-01 N1 - Last updated - 2017-03-01 N1 - SubjectsTermNotLitGenreText - Temperature effects; Uncertainty; Mitigation; Geographical distribution; Policies; Climate; Climate change; Agreements; Greenhouse effect; Temperature changes; Public policy and climate; Greenhouse gases; Historical account; Temperature; USA DO - http://dx.doi.org/10.1038/nclimate3125 ER - TY - JOUR T1 - Physically based probabilistic seismic hazard analysis using broadband ground motion simulation: a case study for the Prince Islands Fault, Marmara Sea AN - 1861095534; 783669-5 AB - The main motivation for this study was the impending occurrence of a catastrophic earthquake along the Prince Island Fault (PIF) in the Marmara Sea and the disaster risk around the Marmara region, especially in Istanbul. This study provides the results of a physically based probabilistic seismic hazard analysis (PSHA) methodology, using broadband strong ground motion simulations, for sites within the Marmara region, Turkey, that may be vulnerable to possible large earthquakes throughout the PIF segments in the Marmara Sea. The methodology is called physically based because it depends on the physical processes of earthquake rupture and wave propagation to simulate earthquake ground motion time histories. We included the effects of all considerable-magnitude earthquakes. To generate the high-frequency (0.5-20 Hz) part of the broadband earthquake simulation, real, small-magnitude earthquakes recorded by a local seismic array were used as empirical Green's functions. For the frequencies below 0.5 Hz, the simulations were obtained by using synthetic Green's functions, which are synthetic seismograms calculated by an explicit 2D/3D elastic finite difference wave propagation routine. By using a range of rupture scenarios for all considerable-magnitude earthquakes throughout the PIF segments, we produced a hazard calculation for frequencies of 0.1-20 Hz. The physically based PSHA used here followed the same procedure as conventional PSHA, except that conventional PSHA utilizes point sources or a series of point sources to represent earthquakes, and this approach utilizes the full rupture of earthquakes along faults. Furthermore, conventional PSHA predicts ground motion parameters by using empirical attenuation relationships, whereas this approach calculates synthetic seismograms for all magnitudes of earthquakes to obtain ground motion parameters. PSHA results were produced for 2, 10, and 50 % hazards for all sites studied in the Marmara region. Copyright 2016 The Author(s) JF - Earth, Planets and Space AU - Mert, Aydin AU - Fahjan, Yasin M AU - Hutchings, Lawrence J AU - Pinar, Ali Y1 - 2016/12// PY - 2016 DA - December 2016 EP - Article 146 PB - Terra Scientific Publishing Company (TERRAPUB), Tokyo VL - 68 IS - 1 SN - 1343-8832, 1343-8832 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861095534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth%2C+Planets+and+Space&rft.atitle=Physically+based+probabilistic+seismic+hazard+analysis+using+broadband+ground+motion+simulation%3A+a+case+study+for+the+Prince+Islands+Fault%2C+Marmara+Sea&rft.au=Mert%2C+Aydin%3BFahjan%2C+Yasin+M%3BHutchings%2C+Lawrence+J%3BPinar%2C+Ali&rft.aulast=Mert&rft.aufirst=Aydin&rft.date=2016-12-01&rft.volume=28&rft.issue=21&rft.spage=5450&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2Fhyp.10058 L2 - http://www.terrapub.co.jp/journals/EPS/ LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Last updated - 2017-01-24 DO - http://dx.doi.org/10.1186/s40623-016-0520-3 ER - TY - JOUR T1 - Geologic carbon sequestration injection wells in overpressured storage reservoirs: estimating area of review AN - 1855073925; PQ0003949655 AB - The Area of Review (AoR) under the US Environmental Protection Agency's (EPA) Class VI CO sub(2) injection permit is defined as the region surrounding the geologic carbon sequestration (GCS) project where underground sources of drinking water (USDWs) may be endangered. Estimation of the AoR is based on the calculated reservoir pressurization due to CO sub(2) injection and the associated potential to lift saline water into potable groundwater aquifers through open flow paths (e.g. wells) assuming the system is hydrostatic. In cases where the storage reservoirs are not initially hydrostatic, and in particular where they are overpressured, AoR estimation methods need to be altered. In this paper, we present and apply an approach to evaluating potential endangerment of USDW based on comparing brine leakage through a hypothetical open flow path in a no-injection scenario and brine leakage in a CO sub(2)-injection scenario. We present six possible ways to normalize injection-related leakage relative to no-injection leakage. We calculate leakage using semi-analytical solutions for single-phase flow and model reservoir pressurization and flow up (single) leaky wells located progressively farther from the injection well. For an example case of relative overpressure and using an injection-rate-based approach, results show 5060% larger open-well-leakage rates for wells located at 2 km and 10% increase for wells located at 10 km from the injection well relative to the no-injection case. If total brine leakage is considered, the results depend strongly on the assumed pre-injection to post-injection time frames and on the methods of normalization used to calculate incremental leakage. JF - Greenhouse Gases: Science and Technology AU - Oldenburg, Curtis M AU - Cihan, Abdullah AU - Zhou, Quanlin AU - Fairweather, Stacey AU - Spangler, Lee H AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA. Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 775 EP - 786 PB - Wiley-Blackwell, Baffins Lane Chichester W. Sussex PO19 1UD United Kingdom VL - 6 IS - 6 SN - 2152-3878, 2152-3878 KW - Environment Abstracts; Ecology Abstracts KW - Aquifers KW - Leakage KW - Injection wells KW - Injection KW - Models KW - Storage KW - Carbon sequestration KW - EPA KW - Carbon KW - Ground water KW - Hydrostatics KW - Water wells KW - Saline water KW - Geology KW - Groundwater KW - Carbon dioxide KW - Greenhouse gases KW - Drinking water KW - Brines KW - D 04040:Ecosystem and Ecology Studies KW - ENA 16:Renewable Resources-Water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855073925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Greenhouse+Gases%3A+Science+and+Technology&rft.atitle=Geologic+carbon+sequestration+injection+wells+in+overpressured+storage+reservoirs%3A+estimating+area+of+review&rft.au=Oldenburg%2C+Curtis+M%3BCihan%2C+Abdullah%3BZhou%2C+Quanlin%3BFairweather%2C+Stacey%3BSpangler%2C+Lee+H&rft.aulast=Oldenburg&rft.aufirst=Curtis&rft.date=2016-12-01&rft.volume=6&rft.issue=6&rft.spage=775&rft.isbn=&rft.btitle=&rft.title=Greenhouse+Gases%3A+Science+and+Technology&rft.issn=21523878&rft_id=info:doi/10.1002%2Fghg.1607 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-01-01 N1 - Last updated - 2017-02-15 N1 - SubjectsTermNotLitGenreText - Aquifers; Carbon; Leakage; Ground water; Saline water; Drinking water; Greenhouse gases; Carbon dioxide; Injection; Models; Brines; Storage; EPA; Carbon sequestration; Injection wells; Water wells; Hydrostatics; Geology; Groundwater DO - http://dx.doi.org/10.1002/ghg.1607 ER - TY - JOUR T1 - When more is better: how data sharing would accelerate genomic selection of crop plants AN - 1846397028; PQ0003858475 AB - Genomic selection is proving an effective new strategy for increasing breeding efficiency in a wide variety of cereal species - the staple crops that feed the world. A preponderance of studies, reviewed here, has confirmed that the more correlated phenotypic and environmental data that are used to feed genomics-assisted breeding models, the better the prediction accuracies of the models and the more useful the breeding outcomes. We argue that based on these empirical results, new alliances to share data across genomic selection breeding programs are critical to the rapid development and deployment of new crop varieties. JF - New Phytologist AU - Spindel, Jennifer E AU - McCouch, Susan R AD - Lawrence Berkeley National Laboratory Joint Genome Institute, 2800 Mitchell Dr, Walnut Creek, CA, 94598, USA. Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 814 EP - 826 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 212 IS - 4 SN - 0028-646X, 0028-646X KW - Genetics Abstracts; ASFA 1: Biological Sciences & Living Resources; Biotechnology and Bioengineering Abstracts KW - Data processing KW - Cereals KW - Reviews KW - Plant breeding KW - genomics KW - Environmental factors KW - Phenotypes KW - Crops KW - Models KW - Modelling KW - Q1 08443:Population genetics KW - G 07800:Plants and Algae KW - W 30930:Agricultural Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1846397028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=New+Phytologist&rft.atitle=When+more+is+better%3A+how+data+sharing+would+accelerate+genomic+selection+of+crop+plants&rft.au=Spindel%2C+Jennifer+E%3BMcCouch%2C+Susan+R&rft.aulast=Spindel&rft.aufirst=Jennifer&rft.date=2016-12-01&rft.volume=212&rft.issue=4&rft.spage=814&rft.isbn=&rft.btitle=&rft.title=New+Phytologist&rft.issn=0028646X&rft_id=info:doi/10.1111%2Fnph.14174 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Last updated - 2017-01-18 N1 - SubjectsTermNotLitGenreText - Phenotypes; Environmental factors; Modelling; Data processing; Cereals; Reviews; Plant breeding; genomics; Crops; Models DO - http://dx.doi.org/10.1111/nph.14174 ER - TY - JOUR T1 - Mixed Beam Murine Harderian Gland Tumorigenesis: Predicted Dose-Effect Relationships if neither Synergism nor Antagonism Occurs. AN - 1842601813; 27874325 AB - Complex mixed radiation fields exist in interplanetary space, and little is known about their late effects on space travelers. In silico synergy analysis default predictions are useful when planning relevant mixed-ion-beam experiments and interpreting their results. These predictions are based on individual dose-effect relationships (IDER) for each component of the mixed-ion beam, assuming no synergy or antagonism. For example, a default hypothesis of simple effect additivity has often been used throughout the study of biology. However, for more than a century pharmacologists interested in mixtures of therapeutic drugs have analyzed conceptual, mathematical and practical questions similar to those that arise when analyzing mixed radiation fields, and have shown that simple effect additivity often gives unreasonable predictions when the IDER are curvilinear. Various alternatives to simple effect additivity proposed in radiobiology, pharmacometrics, toxicology and other fields are also known to have important limitations. In this work, we analyze upcoming murine Harderian gland (HG) tumor prevalence mixed-beam experiments, using customized open-source software and published IDER from past single-ion experiments. The upcoming experiments will use acute irradiation and the mixed beam will include components of high atomic number and energy (HZE). We introduce a new alternative to simple effect additivity, "incremental effect additivity", which is more suitable for the HG analysis and perhaps for other end points. We use incremental effect additivity to calculate default predictions for mixture dose-effect relationships, including 95% confidence intervals. We have drawn three main conclusions from this work. 1. It is important to supplement mixed-beam experiments with single-ion experiments, with matching end point(s), shielding and dose timing. 2. For HG tumorigenesis due to a mixed beam, simple effect additivity and incremental effect additivity sometimes give default predictions that are numerically close. However, if nontargeted effects are important and the mixed beam includes a number of different HZE components, simple effect additivity becomes unusable and another method is needed such as incremental effect additivity. 3. Eventually, synergy analysis default predictions of the effects of mixed radiation fields will be replaced by more mechanistic, biophysically-based predictions. However, optimizing synergy analyses is an important first step. If mixed-beam experiments indicate little synergy or antagonism, plans by NASA for further experiments and possible missions beyond low earth orbit will be substantially simplified. JF - Radiation research AU - Siranart, Nopphon AU - Blakely, Eleanor A AU - Cheng, Alden AU - Handa, Naval AU - Sachs, Rainer K AD - a Department of Mathematics, University of California at Berkeley, Berkeley, California. ; b Biosciences Area, Lawrence Berkeley National Laboratory, Berkeley, California. Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 577 EP - 591 VL - 186 IS - 6 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1842601813?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+research&rft.atitle=Mixed+Beam+Murine+Harderian+Gland+Tumorigenesis%3A+Predicted+Dose-Effect+Relationships+if+neither+Synergism+nor+Antagonism+Occurs.&rft.au=Siranart%2C+Nopphon%3BBlakely%2C+Eleanor+A%3BCheng%2C+Alden%3BHanda%2C+Naval%3BSachs%2C+Rainer+K&rft.aulast=Siranart&rft.aufirst=Nopphon&rft.date=2016-12-01&rft.volume=186&rft.issue=6&rft.spage=577&rft.isbn=&rft.btitle=&rft.title=Radiation+research&rft.issn=1938-5404&rft_id=info:doi/10.1667%2FRR14411.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-11-22 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1667/RR14411.1 ER - TY - JOUR T1 - Building energy information systems: synthesis of costs, savings, and best-practice uses AN - 1837299699; PQ0003745562 AB - Building energy information systems (EIS) are a powerful customer-facing monitoring and analytical technology that can enable up to 20 % site energy savings for buildings. Few technologies are as heavily marketed, but in spite of their potential, EIS remain an underadopted emerging technology. One reason is the lack of information on purchase costs and associated energy savings. While insightful, the growing body of individual case studies has not provided industry the information needed to establish the business case for investment. Vastly different energy and economic metrics prevent generalizable conclusions. This paper addresses three common questions concerning EIS use: what are the costs, what have users saved, and which best practices drive deeper savings? We present a large-scale assessment of the value proposition for EIS use based on data from over two-dozen organizations. Participants achieved year-over-year median site and portfolio savings of 17 and 8 %, respectively; they reported that this performance would not have been possible without the EIS. The median 5-year cost of EIS software ownership (up-front and ongoing costs) was calculated to be $1800 per monitoring point (kilowatt meter points were most common), with a median portfolio-wide implementation size of approximately 200 points. In this paper, we present an analysis of the relationship between key implementation factors and achieved energy reductions. Extent of efficiency projects, building energy performance prior to EIS installation, depth of metering, and duration of EIS were strongly correlated with greater savings. We also identify the best practices use of EIS associated with greater energy savings. JF - Energy Efficiency AU - Granderson, Jessica AU - Lin, Guanjing AD - Building Technology and Urban Systems Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA, jgranderson@lbl.gov Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 1369 EP - 1384 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 9 IS - 6 SN - 1570-646X, 1570-646X KW - Environment Abstracts KW - Energy efficiency KW - Computer programs KW - Case studies KW - Energy KW - Portfolios KW - Economics KW - Energy conservation KW - Buildings KW - Technology KW - Information systems KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1837299699?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Efficiency&rft.atitle=Building+energy+information+systems%3A+synthesis+of+costs%2C+savings%2C+and+best-practice+uses&rft.au=Granderson%2C+Jessica%3BLin%2C+Guanjing&rft.aulast=Granderson&rft.aufirst=Jessica&rft.date=2016-12-01&rft.volume=9&rft.issue=6&rft.spage=1369&rft.isbn=&rft.btitle=&rft.title=Energy+Efficiency&rft.issn=1570646X&rft_id=info:doi/10.1007%2Fs12053-016-9428-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-11-01 N1 - Number of references - 27 N1 - Last updated - 2016-11-23 N1 - SubjectsTermNotLitGenreText - Computer programs; Energy efficiency; Case studies; Energy; Economics; Portfolios; Energy conservation; Buildings; Information systems; Technology DO - http://dx.doi.org/10.1007/s12053-016-9428-9 ER - TY - JOUR T1 - Degradation of ciprofloxacin by 280 nm ultraviolet-activated persulfate: Degradation pathway and intermediate impact on proteome of Escherichia coli. AN - 1835390879; 27664520 AB - In this study, the degradation of ciprofloxacin (CIP) was explored using ultraviolet activated persulfate (UV/PS) with 280 nm ultraviolet light-emitting diodes (UV-LEDs), and the toxicological assessment of degrading intermediates was performed using iTRAQ labeling quantitative proteomic technology. The quantitative mass spectrum results showed that 280 nm UV/PS treatment had a high transformation efficiency of CIP ([CIP] = 3 μM, [S2O82-] = 210 μM, apparent rate constants 0.2413 min-1). The high resolution mass spectrum analyses demonstrated that the primary intermediates included C15H16FN3O3 (m/z 306.1248) and C17H18FN3O4 (m/z 348.1354). The former one was formed by the cleavage of piperazine ring, while the later one was generated by the addition of a hydroxyl on the quinolone backbone. The toxicological assessment demonstrated that 56 and 110 proteins had significant up regulations and down regulations, respectively, in the Escherichia coli exposed to degraded CIP compared to untreated CIP. The majority of up-regulated proteins, such as GapA, SodC, were associated with primary metabolic process rather than responses to stress and toxic substance, inferring that the moderate UV/PS treatment can reduce the antibacterial activity of CIP by incomplete mineralization. Consequently, these results provided a novel insight into the application of UV-LED/PS treatment as a promising removal methodology for quinolones. JF - Chemosphere AU - Ye, Jin-Shao AU - Liu, Juan AU - Ou, Hua-Se AU - Wang, Lin-Lin AD - School of Environment, Guangzhou Key Laboratory of Environmental Exposure and Health, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China; Joint Genome Institute, Lawrence Berkeley National Laboratory, Walnut Creek 94598, CA, USA. ; School of Environment, Guangzhou Key Laboratory of Environmental Exposure and Health, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China. ; School of Environment, Guangzhou Key Laboratory of Environmental Exposure and Health, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China. Electronic address: touhuase@jnu.edu.cn. Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 311 EP - 319 VL - 165 KW - Toxicological assessment KW - Water treatment KW - Ultraviolet activated persulfate KW - Proteomics KW - Antibiotics KW - Advanced oxidation process UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1835390879?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere&rft.atitle=Degradation+of+ciprofloxacin+by+280%C2%A0nm+ultraviolet-activated+persulfate%3A+Degradation+pathway+and+intermediate+impact+on+proteome+of+Escherichia+coli.&rft.au=Ye%2C+Jin-Shao%3BLiu%2C+Juan%3BOu%2C+Hua-Se%3BWang%2C+Lin-Lin&rft.aulast=Ye&rft.aufirst=Jin-Shao&rft.date=2016-12-01&rft.volume=165&rft.issue=&rft.spage=311&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=1879-1298&rft_id=info:doi/10.1016%2Fj.chemosphere.2016.09.031 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-09-24 N1 - Date revised - 2017-02-18 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1016/j.chemosphere.2016.09.031 ER - TY - JOUR T1 - Physical-chemical evaluation of hydraulic fracturing chemicals in the context of produced water treatment. AN - 1821789960; 27591844 AB - Produced water is a significant waste stream that can be treated and reused; however, the removal of production chemicals-such as those added in hydraulic fracturing-must be addressed. One motivation for treating and reusing produced water is that current disposal methods-typically consisting of deep well injection and percolation in infiltration pits-are being limited. Furthermore, oil and gas production often occurs in arid regions where there is demand for new water sources. In this paper, hydraulic fracturing chemical additive data from California are used as a case study where physical-chemical and biodegradation data are summarized and used to screen for appropriate produced water treatment technologies. The data indicate that hydraulic fracturing chemicals are largely treatable; however, data are missing for 24 of the 193 chemical additives identified. More than one-third of organic chemicals have data indicating biodegradability, suggesting biological treatment would be effective. Adsorption-based methods and partitioning of chemicals into oil for subsequent separation is expected to be effective for approximately one-third of chemicals. Volatilization-based treatment methods (e.g. air stripping) will only be effective for approximately 10% of chemicals. Reverse osmosis is a good catch-all with over 70% of organic chemicals expected to be removed efficiently. Other technologies such as electrocoagulation and advanced oxidation are promising but lack demonstration. Chemicals of most concern due to prevalence, toxicity, and lack of data include propargyl alcohol, 2-mercaptoethyl alcohol, tetrakis hydroxymethyl-phosphonium sulfate, thioglycolic acid, 2-bromo-3-nitrilopropionamide, formaldehyde polymers, polymers of acrylic acid, quaternary ammonium compounds, and surfactants (e.g. ethoxylated alcohols). Future studies should examine the fate of hydraulic fracturing chemicals in produced water treatment trains to demonstrate removal and clarify interactions between upstream and downstream processes. JF - Journal of environmental management AU - Camarillo, Mary Kay AU - Domen, Jeremy K AU - Stringfellow, William T AD - Ecological Engineering Research Program, School of Engineering & Computer Science, University of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, USA. Electronic address: mcamarillo@pacific.edu. ; Ecological Engineering Research Program, School of Engineering & Computer Science, University of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, USA. ; Ecological Engineering Research Program, School of Engineering & Computer Science, University of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, USA; Earth & Environmental Sciences Area, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA. Y1 - 2016/12/01/ PY - 2016 DA - 2016 Dec 01 SP - 164 EP - 174 VL - 183 KW - Index Medicus KW - Produced water KW - Wastewater treatment KW - Oil and gas production KW - Hydraulic fracturing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1821789960?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+environmental+management&rft.atitle=Physical-chemical+evaluation+of+hydraulic+fracturing+chemicals+in+the+context+of+produced+water+treatment.&rft.au=Camarillo%2C+Mary+Kay%3BDomen%2C+Jeremy+K%3BStringfellow%2C+William+T&rft.aulast=Camarillo&rft.aufirst=Mary&rft.date=2016-12-01&rft.volume=183&rft.issue=&rft.spage=164&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+management&rft.issn=1095-8630&rft_id=info:doi/10.1016%2Fj.jenvman.2016.08.065 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-09-19 N1 - Date revised - 2017-02-18 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1016/j.jenvman.2016.08.065 ER - TY - JOUR T1 - pH-dependent control of feldspar dissolution rate by altered surface layers AN - 1869032683; 2017-010267 AB - Relevant modeling of mass and energy fluxes involved in pedogenesis, sequestration of atmospheric CO (sub 2) or geochemical cycling of elements partly relies on kinetic rate laws of mineral dissolution obtained in the laboratory. Deriving an accurate and unified description of mineral dissolution has therefore become a prerequisite of crucial importance. However, the impact of amorphous silica-rich surface layers on the dissolution kinetics of silicate minerals remains poorly understood, and ignored in most reactive transport codes. In the present study, the dissolution of oriented cleavage surfaces and powders of labradorite feldspar was investigated as a function of pH and time at 80 degrees C in batch reactors. Electron microscopy observations confirmed the formation of silica-rich surface layers on all samples. At pH = 1.5, the dissolution rate of labradorite remained constant over time. In contrast, at pH = 3, both the dissolution rates at the external layer/solution interface and the internal layer/mineral interface dramatically decreased over time. The dissolution rate at the external interface was hardly measurable after 4 weeks of reaction, and decreased by an order of magnitude at the internal interface. In another set of experiments conducted in aqueous silica-rich solutions, the stabilization of silica-rich surface layers controlled the dissolution rate of labradorite at pH = 3. The reduction of labradorite dissolution rate may result from a gradual modification of the textural properties of the amorphous surface layer at the fluid/mineral interface. The passivation of the main cleavage of labradorite feldspar was consistent with that observed on powders. Overall, our results demonstrate that the nature of the fluid/mineral interface to be considered in the rate limiting step of the process, as well as the properties of the interfacial layer (i.e. its chemical composition, structure and texture) to be taken into account for an accurate determination of the dissolution kinetics may depend on several parameters, such as pH or time. The dramatic impact of the stabilization of surface layers with increasing pH implies that the formation and the role of surface layers on dissolving feldspar minerals should be accounted for in the future. JF - Chemical Geology AU - Wild, Bastien AU - Daval, Damien AU - Guyot, Francois AU - Knauss, Kevin G AU - Pollet-Villard, Marion AU - Imfeld, Gwenael Y1 - 2016/11/28/ PY - 2016 DA - 2016 Nov 28 SP - 148 EP - 159 PB - Elsevier, Amsterdam VL - 442 SN - 0009-2541, 0009-2541 KW - silicates KW - mass spectra KW - labradorite KW - reactivity KW - framework silicates KW - spectra KW - mineral assemblages KW - thermodynamic properties KW - kinetics KW - pH KW - surface properties KW - orientation KW - plagioclase KW - experimental studies KW - biochemistry KW - statistical analysis KW - roughness KW - electron microscopy data KW - solubility KW - X-ray spectra KW - weathering KW - geochemical cycle KW - EDS spectra KW - ICP mass spectra KW - mathematical methods KW - crystallization KW - crystal chemistry KW - feldspar group KW - SEM data KW - backscattering KW - 01B:Mineralogy of silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1869032683?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=pH-dependent+control+of+feldspar+dissolution+rate+by+altered+surface+layers&rft.au=Wild%2C+Bastien%3BDaval%2C+Damien%3BGuyot%2C+Francois%3BKnauss%2C+Kevin+G%3BPollet-Villard%2C+Marion%3BImfeld%2C+Gwenael&rft.aulast=Wild&rft.aufirst=Bastien&rft.date=2016-11-28&rft.volume=442&rft.issue=&rft.spage=148&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2Fj.chemgeo.2016.08.035 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2017-01-01 N1 - Number of references - 88 N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2017-02-17 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - backscattering; biochemistry; crystal chemistry; crystallization; EDS spectra; electron microscopy data; experimental studies; feldspar group; framework silicates; geochemical cycle; ICP mass spectra; kinetics; labradorite; mass spectra; mathematical methods; mineral assemblages; orientation; pH; plagioclase; reactivity; roughness; SEM data; silicates; solubility; spectra; statistical analysis; surface properties; thermodynamic properties; weathering; X-ray spectra DO - http://dx.doi.org/10.1016/j.chemgeo.2016.08.035 ER - TY - JOUR T1 - Single-particle mapping of nonequilibrium nanocrystal transformations. AN - 1841794997; 27856905 AB - Chemists have developed mechanistic insight into numerous chemical reactions by thoroughly characterizing nonequilibrium species. Although methods to probe these processes are well established for molecules, analogous techniques for understanding intermediate structures in nanomaterials have been lacking. We monitor the shape evolution of individual anisotropic gold nanostructures as they are oxidatively etched in a graphene liquid cell with a controlled redox environment. Short-lived, nonequilibrium nanocrystals are observed, structurally analyzed, and rationalized through Monte Carlo simulations. Understanding these reaction trajectories provides important fundamental insight connecting high-energy nanocrystal morphologies to the development of kinetically stabilized surface features and demonstrates the importance of developing tools capable of probing short-lived nanoscale species at the single-particle level. JF - Science (New York, N.Y.) AU - Ye, Xingchen AU - Jones, Matthew R AU - Frechette, Layne B AU - Chen, Qian AU - Powers, Alexander S AU - Ercius, Peter AU - Dunn, Gabriel AU - Rotskoff, Grant M AU - Nguyen, Son C AU - Adiga, Vivekananda P AU - Zettl, Alex AU - Rabani, Eran AU - Geissler, Phillip L AU - Alivisatos, A Paul AD - Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA. ; Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. ; Department of Physics, University of California, Berkeley, Berkeley, CA 94720, USA. ; Biophysics Graduate Group, University of California, Berkeley, Berkeley, CA 94720, USA. ; Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA. alivis@berkeley.edu. Y1 - 2016/11/18/ PY - 2016 DA - 2016 Nov 18 SP - 874 EP - 877 VL - 354 IS - 6314 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1841794997?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28New+York%2C+N.Y.%29&rft.atitle=Single-particle+mapping+of+nonequilibrium+nanocrystal+transformations.&rft.au=Ye%2C+Xingchen%3BJones%2C+Matthew+R%3BFrechette%2C+Layne+B%3BChen%2C+Qian%3BPowers%2C+Alexander+S%3BErcius%2C+Peter%3BDunn%2C+Gabriel%3BRotskoff%2C+Grant+M%3BNguyen%2C+Son+C%3BAdiga%2C+Vivekananda+P%3BZettl%2C+Alex%3BRabani%2C+Eran%3BGeissler%2C+Phillip+L%3BAlivisatos%2C+A+Paul&rft.aulast=Ye&rft.aufirst=Xingchen&rft.date=2016-11-18&rft.volume=354&rft.issue=6314&rft.spage=874&rft.isbn=&rft.btitle=&rft.title=Science+%28New+York%2C+N.Y.%29&rft.issn=1095-9203&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-11-18 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 ER - TY - JOUR T1 - Molecular Engineering of the Peptoid Nanosheet Hydrophobic Core. AN - 1834993736; 27794618 AB - The relationship between the structure of sequence-defined peptoid polymers and their ability to assemble into well-defined nanostructures is important to the creation of new bioinspired platforms with sophisticated functionality. Here, the hydrophobic N-(2-phenylethyl)glycine (Npe) monomers of the standard nanosheet-forming peptoid sequence were modified in an effort to (1) produce nanosheets from relatively short peptoids, (2) inhibit the aggregation of peptoids in bulk solution, (3) increase nanosheet stability by promoting packing interactions within the hydrophobic core, and (4) produce nanosheets with a nonaromatic hydrophobic core. Fluorescence and optical microscopy of individual nanosheets reveal that certain modifications to the hydrophobic core were well tolerated, whereas others resulted in instability or aggregation or prevented assembly. Importantly, we demonstrate that substitution at the meta and para positions of the Npe aromatic ring are well tolerated, enabling significant opportunities to tune the functional properties of peptoid nanosheets. We also found that N-aryl glycine monomers inhibit nanosheet formation, whereas branched aliphatic monomers have the ability to form nanosheets. An analysis of the crystal structures of several N,N'-disubstituted diketopiperazines (DKPs), a simple model system, revealed that the preferred solid-state packing arrangement of the hydrophobic groups can directly inform the assembly of stable peptoid nanosheets. JF - Langmuir : the ACS journal of surfaces and colloids AU - Robertson, Ellen J AU - Proulx, Caroline AU - Su, Jessica K AU - Garcia, Rita L AU - Yoo, Stan AU - Nehls, Eric M AU - Connolly, Michael D AU - Taravati, Laudann AU - Zuckermann, Ronald N AD - Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States. Y1 - 2016/11/15/ PY - 2016 DA - 2016 Nov 15 SP - 11946 EP - 11957 VL - 32 IS - 45 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1834993736?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Langmuir+%3A+the+ACS+journal+of+surfaces+and+colloids&rft.atitle=Molecular+Engineering+of+the+Peptoid+Nanosheet+Hydrophobic+Core.&rft.au=Robertson%2C+Ellen+J%3BProulx%2C+Caroline%3BSu%2C+Jessica+K%3BGarcia%2C+Rita+L%3BYoo%2C+Stan%3BNehls%2C+Eric+M%3BConnolly%2C+Michael+D%3BTaravati%2C+Laudann%3BZuckermann%2C+Ronald+N&rft.aulast=Robertson&rft.aufirst=Ellen&rft.date=2016-11-15&rft.volume=32&rft.issue=45&rft.spage=11946&rft.isbn=&rft.btitle=&rft.title=Langmuir+%3A+the+ACS+journal+of+surfaces+and+colloids&rft.issn=1520-5827&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-10-31 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 ER - TY - JOUR T1 - Particle size effect and the mechanism of hematite reduction by the outer membrane cytochrome OmcA of Shewanella oneidensis MR-1 AN - 1832622151; 783995-10 AB - The cycling of iron at the Earth's near surface is profoundly influenced by dissimilatory metal reducing microorganisms, and many studies have focused on unraveling electron transfer mechanisms between these bacteria and Fe(III)-(oxyhydr)oxides. However, these efforts have been complicated by the fact that these minerals often occur in the micro- to nanosize regime, and in relevant natural environments as well as in the laboratory are subject to aggregation. The nature of the physical interface between the cellular envelope, the outer-membrane cytochromes responsible for facilitating the interfacial electron transfer step, and these complex mineral particulates is thus difficult to probe. Previous studies using whole cells have reported reduction rates that do not correlate with particle size. In the present study we isolate the interaction between the decaheme outer-membrane cytochrome OmcA of Shewanella oneidensis and nanoparticulate hematite, examining the reduction rate as a function of particle size and reaction products through detailed characterization of the electron balance and the structure and valence of iron at particle surfaces. By comparison with abiotic reduction via the smaller molecule ascorbic acid, we show that the reduction rate is systematically controlled by the sterically accessible interfacial contact area between OmcA and hematite in particle aggregates; rates increase once pore throat sizes in aggregates become as large as OmcA. Simultaneous measure of OmcA oxidation against Fe(II) release shows a ratio of 1:10, consistent with a cascade OmcA oxidation mechanism heme by heme. X-ray absorption spectroscopies reveal incipient magnetite on the reacted surfaces of the hematite nanoparticles after reaction. The collective findings establish the importance of accessibility of physical contact between the terminal reductases and iron oxide surfaces, and through apparent consistency of observations help reconcile behavior reported at the larger more complex scale of whole cell studies. JF - Geochimica et Cosmochimica Acta AU - Liu, Juan AU - Pearce, Carolyn I AU - Shi, Liang AU - Wang, Zheming AU - Shi, Zhi AU - Arenholz, Elke AU - Rosso, Kevin M Y1 - 2016/11/15/ PY - 2016 DA - 2016 Nov 15 SP - 160 EP - 175 PB - Elsevier, New York, NY VL - 193 SN - 0016-7037, 0016-7037 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832622151?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Particle+size+effect+and+the+mechanism+of+hematite+reduction+by+the+outer+membrane+cytochrome+OmcA+of+Shewanella+oneidensis+MR-1&rft.au=Liu%2C+Juan%3BPearce%2C+Carolyn+I%3BShi%2C+Liang%3BWang%2C+Zheming%3BShi%2C+Zhi%3BArenholz%2C+Elke%3BRosso%2C+Kevin+M&rft.aulast=Liu&rft.aufirst=Juan&rft.date=2016-11-15&rft.volume=193&rft.issue=&rft.spage=160&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.08.022 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - PubXState - NY N1 - Last updated - 2017-01-24 N1 - CODEN - GCACAK DO - http://dx.doi.org/10.1016/j.gca.2016.08.022 ER - TY - JOUR T1 - Molecular Architecture of Contactin-associated Protein-like 2 (CNTNAP2) and Its Interaction with Contactin 2 (CNTN2). AN - 1835503846; 27621318 AB - Contactin-associated protein-like 2 (CNTNAP2) is a large multidomain neuronal adhesion molecule implicated in a number of neurological disorders, including epilepsy, schizophrenia, autism spectrum disorder, intellectual disability, and language delay. We reveal here by electron microscopy that the architecture of CNTNAP2 is composed of a large, medium, and small lobe that flex with respect to each other. Using epitope labeling and fragments, we assign the F58C, L1, and L2 domains to the large lobe, the FBG and L3 domains to the middle lobe, and the L4 domain to the small lobe of the CNTNAP2 molecular envelope. Our data reveal that CNTNAP2 has a very different architecture compared with neurexin 1α, a fellow member of the neurexin superfamily and a prototype, suggesting that CNTNAP2 uses a different strategy to integrate into the synaptic protein network. We show that the ectodomains of CNTNAP2 and contactin 2 (CNTN2) bind directly and specifically, with low nanomolar affinity. We show further that mutations in CNTNAP2 implicated in autism spectrum disorder are not segregated but are distributed over the whole ectodomain. The molecular shape and dimensions of CNTNAP2 place constraints on how CNTNAP2 integrates in the cleft of axo-glial and neuronal contact sites and how it functions as an organizing and adhesive molecule. JF - The Journal of biological chemistry AU - Lu, Zhuoyang AU - Reddy, M V V V Sekhar AU - Liu, Jianfang AU - Kalichava, Ana AU - Liu, Jiankang AU - Zhang, Lei AU - Chen, Fang AU - Wang, Yun AU - Holthauzen, Luis Marcelo F AU - White, Mark A AU - Seshadrinathan, Suchithra AU - Zhong, Xiaoying AU - Ren, Gang AU - Rudenko, Gabby AD - From the Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720. ; the Department of Pharmacology and Toxicology. ; the Center for Mitochondrial Biology and Medicine, Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China. ; the University of Michigan, Ann Arbor, Michigan 48109. ; the Sealy Center for Structural Biology and Molecular Biophysics and. ; From the Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, gren@lbl.gov. ; the Department of Pharmacology and Toxicology, garudenk@utmb.edu. Y1 - 2016/11/11/ PY - 2016 DA - 2016 Nov 11 SP - 24133 EP - 24147 VL - 291 IS - 46 KW - single particle analysis KW - contactin-associated protein like KW - synaptic organizer KW - protein-protein interaction KW - contactin KW - structural biology KW - neuropsychiatric disorders KW - synapse KW - cell adhesion KW - cell surface receptor UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1835503846?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+biological+chemistry&rft.atitle=Molecular+Architecture+of+Contactin-associated+Protein-like+2+%28CNTNAP2%29+and+Its+Interaction+with+Contactin+2+%28CNTN2%29.&rft.au=Lu%2C+Zhuoyang%3BReddy%2C+M+V+V+V+Sekhar%3BLiu%2C+Jianfang%3BKalichava%2C+Ana%3BLiu%2C+Jiankang%3BZhang%2C+Lei%3BChen%2C+Fang%3BWang%2C+Yun%3BHolthauzen%2C+Luis+Marcelo+F%3BWhite%2C+Mark+A%3BSeshadrinathan%2C+Suchithra%3BZhong%2C+Xiaoying%3BRen%2C+Gang%3BRudenko%2C+Gabby&rft.aulast=Lu&rft.aufirst=Zhuoyang&rft.date=2016-11-11&rft.volume=291&rft.issue=46&rft.spage=24133&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+biological+chemistry&rft.issn=1083-351X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-09-13 N1 - Date revised - 2017-02-17 N1 - Genetic sequence - 1IGT; PDB N1 - Last updated - 2017-02-23 ER - TY - JOUR T1 - Highly Efficient Luminescent Metal-Organic Framework for the Simultaneous Detection and Removal of Heavy Metals from Water. AN - 1835421997; 27736058 AB - We have designed and synthesized an isoreticular series of luminescent metal-organic frameworks (LMOFs) by incorporating a strongly emissive molecular fluorophore and functionally diverse colinkers into Zn-based structures. The three-dimensional porous networks of LMOF-261, -262, and -263 represent a unique/new type of nets, classified as a 2-nodal, (4,4)-c net (mot-e type) with 4-fold, class IIIa interpenetration. All compounds crystallize in a body-centered tetragonal crystal system (space group I41/a). A systematic study has been implemented to analyze their interactions with heavy metals. LMOF-263 exhibits impressive water stability, high porosity, and strong luminescence, making it an excellent candidate as a fluorescent chemical sensor and adsorbent for aqueous contaminants. It is extremely responsive to toxic heavy metals at a parts per billion level (3.3 ppb Hg2+, 19.7 ppb Pb2+) and demonstrates high selectivity for heavy metals over light metals, with detection ratios of 167.4 and 209.5 for Hg2+/Ca2+ and Hg2+/Mg2+, respectively. Mixed-metal adsorption experiments also show that LMOF-263 selectively adsorbs Hg2+ over other heavy metal ions in addition to light metals. The Pb2+ KSV value for LMOF-263 (55,017 M-1) is the highest among LMOFs reported to date, and the Hg2+ KSV value is the second highest (459,446 M-1). LMOF-263 exhibits a maximum adsorption capacity of 380 mg Hg2+/g. The Hg2+ adsorption process follows pseudo-second-order kinetics, removing 99.1% of the metal within 30 min. An in situ XPS study provides insight to help understand the interaction mechanism between Hg2+ and LMOF-263. No other MOFs have demonstrated such a high performance in both the detection and the capture of Hg2+ from aqueous solution. JF - ACS applied materials & interfaces AU - Rudd, Nathan D AU - Wang, Hao AU - Fuentes-Fernandez, Erika M A AU - Teat, Simon J AU - Chen, Feng AU - Hall, Gene AU - Chabal, Yves J AU - Li, Jing AD - Department of Chemistry and Chemical Biology, Rutgers University , 610 Taylor Road, Piscataway, New Jersey 08854, United States. ; Department of Materials Science and Engineering, University of Texas at Dallas , 800 West Campbell Road, Richardson, Texas 75080, United States. ; Advanced Light Source, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States. ; Department of Chemistry, Biochemistry and Physics, Rider University , 2083 Lawrenceville Road, Lawrenceville, New Jersey 08648, United States. Y1 - 2016/11/09/ PY - 2016 DA - 2016 Nov 09 SP - 30294 EP - 30303 VL - 8 IS - 44 KW - heavy metal adsorption KW - isoreticular series KW - heavy metal detection KW - luminescent metal−organic framework KW - ligand-based emission UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1835421997?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+applied+materials+%26+interfaces&rft.atitle=Highly+Efficient+Luminescent+Metal-Organic+Framework+for+the+Simultaneous+Detection+and+Removal+of+Heavy+Metals+from+Water.&rft.au=Rudd%2C+Nathan+D%3BWang%2C+Hao%3BFuentes-Fernandez%2C+Erika+M+A%3BTeat%2C+Simon+J%3BChen%2C+Feng%3BHall%2C+Gene%3BChabal%2C+Yves+J%3BLi%2C+Jing&rft.aulast=Rudd&rft.aufirst=Nathan&rft.date=2016-11-09&rft.volume=117&rft.issue=4&rft.spage=1025&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Microbiology&rft.issn=13645072&rft_id=info:doi/10.1111%2Fjam.12609 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-10-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 ER - TY - JOUR T1 - Tailoring Transition-Metal Hydroxides and Oxides by Photon-Induced Reactions. AN - 1835451529; 27754583 AB - Controlled synthesis of transition-metal hydroxides and oxides with earth-abundant elements have attracted significant interest because of their wide applications, for example as battery electrode materials or electrocatalysts for fuel generation. Here, we report the tuning of the structure of transition-metal hydroxides and oxides by controlling chemical reactions using an unfocused laser to irradiate the precursor solution. A Nd:YAG laser with wavelengths of 532 nm or 1064 nm was used. The Ni2+ , Mn2+ , and Co2+ ion-containing aqueous solution undergoes photo-induced reactions and produces hollow metal-oxide nanospheres (Ni0.18 Mn0.45 Co0.37 Ox ) or core-shell metal hydroxide nanoflowers ([Ni0.15 Mn0.15 Co0.7 (OH)2 ](NO3 )0.2 ⋅H2 O), depending on the laser wavelengths. We propose two reaction pathways, either by photo-induced redox reaction or hydrolysis reaction, which are responsible for the formation of distinct nanostructures. The study of photon-induced materials growth shines light on the rational design of complex nanostructures with advanced functionalities. JF - Angewandte Chemie (International ed. in English) AU - Niu, Kai-Yang AU - Fang, Liang AU - Ye, Rong AU - Nordlund, Dennis AU - Doeff, Marca M AU - Lin, Feng AU - Zheng, Haimei AD - Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California, 94720, USA. ; Department of Chemistry, University of California, Berkeley, CA, 94720, USA. ; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California, 94025, USA. ; Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California, 94720, USA. ; Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California, 94720, USA. hmzheng@lbl.gov. Y1 - 2016/11/07/ PY - 2016 DA - 2016 Nov 07 SP - 14272 EP - 14276 VL - 55 IS - 46 KW - transition-metal hydroxides KW - photochemistry KW - reaction pathways KW - vibrational excitation KW - nanostructures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1835451529?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Angewandte+Chemie+%28International+ed.+in+English%29&rft.atitle=Tailoring+Transition-Metal+Hydroxides+and+Oxides+by+Photon-Induced+Reactions.&rft.au=Niu%2C+Kai-Yang%3BFang%2C+Liang%3BYe%2C+Rong%3BNordlund%2C+Dennis%3BDoeff%2C+Marca+M%3BLin%2C+Feng%3BZheng%2C+Haimei&rft.aulast=Niu&rft.aufirst=Kai-Yang&rft.date=2016-11-07&rft.volume=55&rft.issue=46&rft.spage=14272&rft.isbn=&rft.btitle=&rft.title=Angewandte+Chemie+%28International+ed.+in+English%29&rft.issn=1521-3773&rft_id=info:doi/10.1002%2Fanie.201606775 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-10-18 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1002/anie.201606775 ER - TY - JOUR T1 - A practical model for fluid flow in discrete-fracture porous media by using the numerical manifold method AN - 1861114632; 785482-4 AB - In this study, a numerical manifold method (NMM) model is developed to analyze flow in porous media with discrete fractures in a non-conforming mesh. This new model is based on a two-cover-mesh system with a uniform triangular mathematical mesh and boundary/fracture-divided physical covers, where local independent cover functions are defined. The overlapping parts of the physical covers are elements where the global approximation is defined by the weighted average of the physical cover functions. The mesh is generated by a tree-cutting algorithm. A new model that does not introduce additional degrees of freedom (DOF) for fractures was developed for fluid flow in fractures. The fracture surfaces that belong to different physical covers are used to represent fracture flow in the direction of the fractures. In the direction normal to the fractures, the fracture surfaces are regarded as Dirichlet boundaries to exchange fluxes with the rock matrix. Furthermore, fractures that intersect with Dirichlet or Neumann boundaries are considered. Simulation examples are designed to verify the efficiency of the tree-cutting algorithm, the calculation's independency from the mesh orientation, and accuracy when modeling porous media that contain fractures with multiple intersections and different orientations. The simulation results show good agreement with available analytical solutions. Finally, the model is applied to cases that involve nine intersecting fractures and a complex network of 100 fractures, both of which achieve reasonable results. The new model is very practical for modeling flow in fractured porous media, even for a geometrically complex fracture network with large hydraulic conductivity contrasts between fractures and the matrix. JF - Advances in Water Resources AU - Hu, Mengsu AU - Rutqvist, Jonny AU - Wang, Yuan Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 38 EP - 51 PB - Elsevier, Oxford VL - 97 SN - 0309-1708, 0309-1708 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861114632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=A+practical+model+for+fluid+flow+in+discrete-fracture+porous+media+by+using+the+numerical+manifold+method&rft.au=Hu%2C+Mengsu%3BRutqvist%2C+Jonny%3BWang%2C+Yuan&rft.aulast=Hu&rft.aufirst=Mengsu&rft.date=2016-11-01&rft.volume=97&rft.issue=&rft.spage=38&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/10.1016%2Fj.advwatres.2016.09.001 L2 - http://www.sciencedirect.com/science/journal/03091708 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Last updated - 2017-01-24 DO - http://dx.doi.org/10.1016/j.advwatres.2016.09.001 ER - TY - JOUR T1 - Ionic Liquids Impact the Bioenergy Feedstock-Degrading Microbiome and Transcription of Enzymes Relevant to Polysaccharide Hydrolysis. AN - 1852688852; 27981239 AB - Ionic liquid (IL) pretreatment is a promising approach for the conversion of lignocellulose to biofuels. The toxicity of residual IL, however, negatively impacts the performance of industrial enzymes and microorganisms in hydrolysis and fermentation. In this study, a thermophilic microbial community was cultured on switchgrass amended with various levels of the ionic liquid 1-ethyl-3-methylimidazolium acetate. Changes in the microbial community composition and transcription of genes relevant to IL tolerance and lignocellulose hydrolysis were quantified. Increasing the level of IL to 0.1% (wt) led to increased levels of relative abundance and transcription in organisms of the phylum Firmicutes. Interestingly, IL concentrations of up to 1% (wt) also resulted in greater xylanase transcription and enzyme activity as well as increased transcription of endoglucanase, beta-glucosidase, and IL tolerance genes compared to communities without IL. IL levels above 1% (wt) resulted in decreased enzyme activity and transcription of genes involved in lignocellulose hydrolysis. The results indicate that moderate levels of IL select for thermophilic microorganisms that not only tolerate IL but also effectively hydrolyze lignocellulose from switchgrass. Discovery of IL-tolerant organisms and enzymes is critical for the development of biological processes that convert IL-pretreated biomass to biofuels and chemicals. Employing metatranscriptomic analysis of enrichment cultures can facilitate the discovery of microorganisms and enzymes that may be active in the presence of toxic compounds such as ionic liquids. IMPORTANCE Pretreatment using ionic liquids (IL) is a promising approach for the conversion of lignocellulose to biofuels. Because IL can be inhibitory to enzymes and microorganisms involved in downstream hydrolysis and fermentation steps, discovery of IL-tolerant organisms and enzymes is critical for advancing this technology. Employing metatranscriptomics in the analysis of IL-enriched cultures facilitated tracking of dynamic changes in a complex microbial community at the level of gene transcription and doing so with genome resolution. Specific organisms were discovered that could simultaneously tolerate a moderate IL concentration and transcribe a diverse array of cellulolytic enzymes. Gene sequences of cellulolytic enzymes and efflux pumps from those same organisms were also identified, providing important resources for future research on engineering IL-tolerant organisms and enzymes. JF - mSystems AU - Wu, Yu-Wei AU - Higgins, Brendan AU - Yu, Chaowei AU - Reddy, Amitha P AU - Ceballos, Shannon AU - Joh, Lawrence D AU - Simmons, Blake A AU - Singer, Steven W AU - VanderGheynst, Jean S AD - Joint BioEnergy Institute, Emeryville, California, USA; Graduate Institute of Biomedical Informatics, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan. ; Biological and Agricultural Engineering, University of California, Davis, Davis, California, USA; Biosystems Engineering, Auburn University, Auburn, Alabama, USA. ; Biological and Agricultural Engineering, University of California, Davis, Davis, California, USA. ; Joint BioEnergy Institute, Emeryville, California, USA; Biological and Materials Science Center, Sandia National Laboratories, Livermore, California, USA. ; Joint BioEnergy Institute, Emeryville, California, USA; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA. ; Joint BioEnergy Institute, Emeryville, California, USA; Biological and Agricultural Engineering, University of California, Davis, Davis, California, USA. PY - 2016 VL - 1 IS - 6 KW - hemicellulase KW - 1-ethyl-3-methylimidazolium acetate KW - ionic liquid KW - cellulase UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1852688852?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=mSystems&rft.atitle=Ionic+Liquids+Impact+the+Bioenergy+Feedstock-Degrading+Microbiome+and+Transcription+of+Enzymes+Relevant+to+Polysaccharide+Hydrolysis.&rft.au=Wu%2C+Yu-Wei%3BHiggins%2C+Brendan%3BYu%2C+Chaowei%3BReddy%2C+Amitha+P%3BCeballos%2C+Shannon%3BJoh%2C+Lawrence+D%3BSimmons%2C+Blake+A%3BSinger%2C+Steven+W%3BVanderGheynst%2C+Jean+S&rft.aulast=Wu&rft.aufirst=Yu-Wei&rft.date=2016-11-01&rft.volume=1&rft.issue=6&rft.spage=&rft.isbn=&rft.btitle=&rft.title=mSystems&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-12-16 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 ER - TY - JOUR T1 - The Need for Integrated Approaches in Metabolic Engineering AN - 1850786125; PQ0003837714 AB - This review highlights state-of-the-art procedures for heterologous small-molecule biosynthesis, the associated bottlenecks, and new strategies that have the potential to accelerate future accomplishments in metabolic engineering. We emphasize that a combination of different approaches over multiple time and size scales must be considered for successful pathway engineering in a heterologous host. We have classified these optimization procedures based on the "system" that is being manipulated: transcriptome, translatome, proteome, or reactome. By bridging multiple disciplines, including molecular biology, biochemistry, biophysics, and computational sciences, we can create an integral framework for the discovery and implementation of novel biosynthetic production routes. JF - Cold Spring Harbor Perspectives in Biology AU - Lechner, Anna AU - Brunk, Elizabeth AU - Keasling, Jay D AD - Joint Bioenergy Institute (JBEI), Emeryville, California 94608, jdkeasling@lbl.gov Y1 - 2016/11// PY - 2016 DA - November 2016 PB - Cold Spring Harbor Laboratory Press, Fulfillment & Distribution Dept. Woodbury NY 11797-2924 United States VL - 8 IS - 11 SN - 1943-0264, 1943-0264 KW - Biotechnology and Bioengineering Abstracts KW - Gene expression KW - metabolic engineering KW - Computer applications KW - Biophysics KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1850786125?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cold+Spring+Harbor+Perspectives+in+Biology&rft.atitle=The+Need+for+Integrated+Approaches+in+Metabolic+Engineering&rft.au=Lechner%2C+Anna%3BBrunk%2C+Elizabeth%3BKeasling%2C+Jay+D&rft.aulast=Lechner&rft.aufirst=Anna&rft.date=2016-11-01&rft.volume=8&rft.issue=11&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Cold+Spring+Harbor+Perspectives+in+Biology&rft.issn=19430264&rft_id=info:doi/10.1101%2Fcshperspect.a023903 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Last updated - 2016-12-21 N1 - SubjectsTermNotLitGenreText - Gene expression; metabolic engineering; Computer applications; Biophysics DO - http://dx.doi.org/10.1101/cshperspect.a023903 ER - TY - JOUR T1 - Estimation of rock frame weakening using time-lapse crosswell; the Frio brine pilot project AN - 1849307860; 2016-110797 AB - CO (sub 2) injection into subsurface reservoirs leads to pressure and saturation changes. Furthermore, CO (sub 2) -brine-minerals interaction could result in dissolution or reprecipitation of rock frame-forming minerals. Observed time-lapse seismic associated with CO (sub 2) injection into poorly consolidated sandstone at the Frio CO (sub 2) injection site (Texas, USA) could not be predicted using classical rock-physics models (i.e., models involving elastic changes in the rock frame due to saturations and/or pressures changes only, and assuming no changes in the rock microstructure). That, and the changes in the fluid chemistry after CO (sub 2) injection, suggests that the assumption of a constant rock microstructure might be violated. Using high-resolution time-lapse crosswell data, we have developed a methodology for estimating changes in the rock frame by quantifying the rock-frame drained moduli before and after CO (sub 2) injection. Based on rock microstructure diagnostics, we found that the changes in the drained frame elastic properties are due to the changes in the grain contact-cement percentage. The reduction in contact-cement percent is found to be variable throughout the reservoir, with a maximum near the injection well, down to 0.01% from the initial 0.1% contact cement; this results in more than 40% reduction in the drained frame shear and bulk moduli. CO (sub 2) saturation was estimated using this model for uniform and patchy saturation cases. Our rock-physics analysis may allow improved interpretation of time-lapse seismic for CO (sub 2) saturation in the context of other poorly consolidated sandstones with similar geomechanical properties. Having the P- and S-wave velocity time-lapse data is key to improve saturation estimates with this analysis method. JF - Geophysics AU - Al Hosni, Mohammed AU - Vialle, Stephanie AU - Gurevich, Boris AU - Daley, Thomas M Y1 - 2016/11// PY - 2016 DA - November 2016 SP - B235 EP - B245 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 81 IS - 6 SN - 0016-8033, 0016-8033 KW - United States KW - P-waves KW - sandstone KW - elastic waves KW - elastic constants KW - reservoir rocks KW - carbon dioxide KW - sedimentary rocks KW - time-lapse methods KW - velocity KW - body waves KW - carbon sequestration KW - Frio County Texas KW - crosshole methods KW - geophysical methods KW - Texas KW - bulk modulus KW - seismic methods KW - gas injection KW - physical properties KW - brines KW - seismic waves KW - clastic rocks KW - S-waves KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849307860?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Efficiency&rft.atitle=Self-financed+efficiency+incentives%3A+case+study+of+Mexico&rft.au=Gopal%2C+Anand+R%3BLeventis%2C+Gregory%3BPhadke%2C+Amol%3Bde+la+Rue+du+Can%2C+Stephane&rft.aulast=Gopal&rft.aufirst=Anand&rft.date=2014-10-01&rft.volume=7&rft.issue=5&rft.spage=865&rft.isbn=&rft.btitle=&rft.title=Energy+Efficiency&rft.issn=1570646X&rft_id=info:doi/10.1007%2Fs12053-014-9263-9 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 63 N1 - PubXState - OK N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-12-16 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - body waves; brines; bulk modulus; carbon dioxide; carbon sequestration; clastic rocks; crosshole methods; elastic constants; elastic waves; Frio County Texas; gas injection; geophysical methods; P-waves; physical properties; reservoir rocks; S-waves; sandstone; sedimentary rocks; seismic methods; seismic waves; Texas; time-lapse methods; United States; velocity DO - http://dx.doi.org/10.1190/geo2015-0684.1 ER - TY - JOUR T1 - Rapid room temperature solubilization and depolymerization of polymeric lignin at high loadings AN - 1846410992; PQ0003848304 AB - The relatively poor solubility of lignin in most pretreatment solvents remains one of the biggest challenges in lignin valorization to improve overall biorefinery economics. In this work, rapid room temperature solubilization of lignin at high solid loadings (>30 wt%) can be easily achieved in a single step using ethylene glycol (EG). The solubilized lignin can be rapidly and quantitatively recovered with the addition of ethanol. The computational and nuclear magnetic resonance (NMR) spectroscopic studies confirm that strong hydrogen bond interactions between EG and the free hydroxyl groups present in lignin contribute to the lignin dissolution. In addition, hydrogen peroxide mediated depolymerization of the dissolved lignin at a low temperature (80 degree C) was tested and the effect of EG molecules on depolymerization of lignin was also theoretically studied. The findings of this work provide mechanistic insights of hydrogen bond interactions in high lignin solubilization and valorization. JF - Green Chemistry AU - Sun, Jian AU - Dutta, Tanmoy AU - Parthasarathi, Ramakrishnan AU - Kim, Kwang Ho AU - Tolic, Nikola AU - Chu, Rosalie K AU - Isern, Nancy G AU - Cort, John R AU - Simmons, Blake A AU - Singh, Seema AD - Deconstruction Division; Joint BioEnergy Institute; Emeryville; CA; USA Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 6012 EP - 6020 PB - Royal Society of Chemistry, c/o Springer-Verlag New York Inc. Secaucus New Jersey 07096 2485 United States VL - 18 IS - 22 SN - 1463-9262, 1463-9262 KW - Sustainability Science Abstracts KW - Low temperature KW - Hydrogen peroxide KW - Economics KW - Green development KW - Solvents KW - Hydrogen KW - NMR KW - Ethanol KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1846410992?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Green+Chemistry&rft.atitle=Rapid+room+temperature+solubilization+and+depolymerization+of+polymeric+lignin+at+high+loadings&rft.au=Sun%2C+Jian%3BDutta%2C+Tanmoy%3BParthasarathi%2C+Ramakrishnan%3BKim%2C+Kwang+Ho%3BTolic%2C+Nikola%3BChu%2C+Rosalie+K%3BIsern%2C+Nancy+G%3BCort%2C+John+R%3BSimmons%2C+Blake+A%3BSingh%2C+Seema&rft.aulast=Sun&rft.aufirst=Jian&rft.date=2016-11-01&rft.volume=18&rft.issue=22&rft.spage=6012&rft.isbn=&rft.btitle=&rft.title=Green+Chemistry&rft.issn=14639262&rft_id=info:doi/10.1039%2Fc6gc02258h LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Number of references - 49 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Low temperature; Hydrogen peroxide; Green development; Economics; Solvents; NMR; Hydrogen; Ethanol DO - http://dx.doi.org/10.1039/c6gc02258h ER - TY - JOUR T1 - Large-scale chemical assembly of atomically thin transistors and circuits AN - 1846397396; PQ0003843293 AB - Next-generation electronics calls for new materials beyond silicon, aiming at increased functionality, performance and scaling in integrated circuits. In this respect, two-dimensional gapless graphene and semiconducting transition-metal dichalcogenides have emerged as promising candidates due to their atomic thickness and chemical stability. However, difficulties with precise spatial control during their assembly currently impede actual integration into devices. Here, we report on the large-scale, spatially controlled synthesis of heterostructures made of single-layer semiconducting molybdenum disulfide contacting conductive graphene. Transmission electron microscopy studies reveal that the single-layer molybdenum disulfide nucleates at the graphene edges. We demonstrate that such chemically assembled atomic transistors exhibit high transconductance (10 mu S), on-off ratio (10 super(6)) and mobility (17cm super(2)V super(-1)s super(-1)). The precise site selectivity from atomically thin conducting and semiconducting crystals enables us to exploit these heterostructures to assemble two-dimensional logic circuits, such as an NMOS inverter with high voltage gain (up to 70). JF - Nature Nanotechnology AU - Zhao, Mervin AU - Ye, Yu AU - Han, Yimo AU - Xia, Yang AU - Zhu, Hanyu AU - Wang, Siqi AU - Wang, Yuan AU - Muller, David A AU - Zhang, Xiang AD - NSF Nanoscale Science and Engineering Center, University of California, Berkeley, California 94720, USA; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 954 EP - 959 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 11 IS - 11 SN - 1748-3387, 1748-3387 KW - Biotechnology and Bioengineering Abstracts KW - Silicon KW - integrated circuits KW - Mobility KW - Molybdenum disulfide KW - Transmission electron microscopy KW - Crystals KW - Scaling KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1846397396?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Nanotechnology&rft.atitle=Large-scale+chemical+assembly+of+atomically+thin+transistors+and+circuits&rft.au=Zhao%2C+Mervin%3BYe%2C+Yu%3BHan%2C+Yimo%3BXia%2C+Yang%3BZhu%2C+Hanyu%3BWang%2C+Siqi%3BWang%2C+Yuan%3BMuller%2C+David+A%3BZhang%2C+Xiang&rft.aulast=Zhao&rft.aufirst=Mervin&rft.date=2016-11-01&rft.volume=11&rft.issue=11&rft.spage=954&rft.isbn=&rft.btitle=&rft.title=Nature+Nanotechnology&rft.issn=17483387&rft_id=info:doi/10.1038%2Fnnano.2016.115 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Silicon; integrated circuits; Mobility; Molybdenum disulfide; Transmission electron microscopy; Crystals; Scaling DO - http://dx.doi.org/10.1038/nnano.2016.115 ER - TY - JOUR T1 - Negative feedback circuitry between MIR143HG and RBM24 in Hirschsprung disease. AN - 1844350830; 27565737 AB - Hirschsprung disease (HSCR) is a genetic disorder of neural crest development. It is also believed that epigenetic changes plays a role in the progression of this disease. Here we show that the MIR143 host gene (MIR143HG), the precursor of miR-143 and miR-145, decreased cell proliferation and migration and forms a negative feedback loop with RBM24 in HSCR. As RBM24 mRNA is a target of miR-143, upregulation of RBM24 upon an increase in the level of MIR143HG could be attributed to sequestration of miR-143 by MIR143HG (sponge effect). The RBM24 protein was shown to bind to MIR143HG, and subsequently, accelerated its degradation by destabilizing its transcript and facilitating its interaction with Ago2, thus forming a negative feedback between MIR143HG and RBM24. In addition, experiments using siRNA against DROSHA indicated that RBM24 could promote the biogenesis of miR-143. This feedback loop we describe here represents a novel mode of autoregulation, with implications in HSCR pathogenesis. JF - Biochimica et biophysica acta AU - Du, Chunxia AU - Shen, Ziyang AU - Zang, Rujin AU - Xie, Hua AU - Li, Hongxing AU - Chen, Pingfa AU - Hang, Bo AU - Xu, Xiaoqun AU - Tang, Weibing AU - Xia, Yankai AD - State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Department of Pediatric Surgery, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing 210008, China. ; Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. ; State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Department of Pediatric Surgery, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing 210008, China. Electronic address: twbcn@163.com. ; State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology (Nanjing Medical University), Ministry of Education, China. Electronic address: yankaixia@njmu.edu.cn. Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 2127 EP - 2136 VL - 1862 IS - 11 SN - 0006-3002, 0006-3002 KW - MiR-143 KW - Neuronal development KW - Long non-coding RNA (lncRNA) KW - Competing endogenous RNA (CeRNA) KW - Hirschsprung disease UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844350830?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochimica+et+biophysica+acta&rft.atitle=Negative+feedback+circuitry+between+MIR143HG+and+RBM24+in+Hirschsprung+disease.&rft.au=Du%2C+Chunxia%3BShen%2C+Ziyang%3BZang%2C+Rujin%3BXie%2C+Hua%3BLi%2C+Hongxing%3BChen%2C+Pingfa%3BHang%2C+Bo%3BXu%2C+Xiaoqun%3BTang%2C+Weibing%3BXia%2C+Yankai&rft.aulast=Du&rft.aufirst=Chunxia&rft.date=2016-11-01&rft.volume=1862&rft.issue=11&rft.spage=2127&rft.isbn=&rft.btitle=&rft.title=Biochimica+et+biophysica+acta&rft.issn=00063002&rft_id=info:doi/10.1016%2Fj.bbadis.2016.08.017 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-09-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1016/j.bbadis.2016.08.017 ER - TY - JOUR T1 - Exopolysaccharide microchannels direct bacterial motility and organize multicellular behavior AN - 1837332070; PQ0003779371 AB - The myxobacteria are a family of soil bacteria that form biofilms of complex architecture, aligned multilayered swarms or fruiting body structures that are simple or branched aggregates containing myxospores. Here, we examined the structural role of matrix exopolysaccharide (EPS) in the organization of these surface-dwelling bacterial cells. Using time-lapse light and fluorescence microscopy, as well as transmission electron microscopy and focused ion beam/scanning electron microscopy (FIB/SEM) electron microscopy, we found that Myxococcus xanthus cell organization in biofilms is dependent on the formation of EPS microchannels. Cells are highly organized within the three-dimensional structure of EPS microchannels that are required for cell alignment and advancement on surfaces. Mutants lacking EPS showed a lack of cell orientation and poor colony migration. Purified, cell-free EPS retains a channel-like structure, and can complement EPS super(-) mutant motility defects. In addition, EPS provides the cooperative structure for fruiting body formation in both the simple mounds of M. xanthus and the complex, tree-like structures of Chondromyces crocatus. We furthermore investigated the possibility that EPS impacts community structure as a shared resource facilitating cooperative migration among closely related isolates of M. xanthus. JF - ISME Journal AU - Berleman, James E AU - Zemla, Marcin AU - Remis, Jonathan P AU - Liu, Hong AU - Davis, Annie E AU - Worth, Alexandra N AU - West, Zachary AU - Zhang, Angela AU - Park, Hanwool AU - Bosneaga, Elena AU - van Leer, Brandon AU - Tsai, Wenting AU - Zusman, David R AU - Auer, Manfred AD - Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA; Department of Biology, St Mary's College, Moraga, CA, USA; Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 2620 EP - 2632 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 10 IS - 11 SN - 1751-7362, 1751-7362 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Environment Abstracts; Ecology Abstracts KW - Myxospores KW - Transmission electron microscopy KW - Chondromyces KW - Migration KW - exopolysaccharides KW - Mutants KW - Soil microorganisms KW - Colonies KW - Myxococcus xanthus KW - Cooperatives KW - Cell migration KW - Biofilms KW - Mounds KW - Scanning electron microscopy KW - Myxobacteria KW - Fruit bodies KW - Motility KW - Community structure KW - Microscopy KW - Fluorescence microscopy KW - D 04040:Ecosystem and Ecology Studies KW - J 02320:Cell Biology KW - ENA 15:Renewable Resources-Terrestrial KW - A 01400:Soil Microbes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1837332070?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ISME+Journal&rft.atitle=Exopolysaccharide+microchannels+direct+bacterial+motility+and+organize+multicellular+behavior&rft.au=Berleman%2C+James+E%3BZemla%2C+Marcin%3BRemis%2C+Jonathan+P%3BLiu%2C+Hong%3BDavis%2C+Annie+E%3BWorth%2C+Alexandra+N%3BWest%2C+Zachary%3BZhang%2C+Angela%3BPark%2C+Hanwool%3BBosneaga%2C+Elena%3Bvan+Leer%2C+Brandon%3BTsai%2C+Wenting%3BZusman%2C+David+R%3BAuer%2C+Manfred&rft.aulast=Berleman&rft.aufirst=James&rft.date=2016-11-01&rft.volume=10&rft.issue=11&rft.spage=2620&rft.isbn=&rft.btitle=&rft.title=ISME+Journal&rft.issn=17517362&rft_id=info:doi/10.1038%2Fismej.2016.60 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-11-01 N1 - Last updated - 2017-01-18 N1 - SubjectsTermNotLitGenreText - Scanning electron microscopy; Myxospores; Fruit bodies; Transmission electron microscopy; exopolysaccharides; Migration; Soil microorganisms; Motility; Colonies; Community structure; Biofilms; Cell migration; Mounds; Microscopy; Cooperatives; Fluorescence microscopy; Mutants; Myxobacteria; Myxococcus xanthus; Chondromyces DO - http://dx.doi.org/10.1038/ismej.2016.60 ER - TY - JOUR T1 - Microbial source tracking in impaired watersheds using PhyloChip and machine-learning classification AN - 1837315000; PQ0003747543 AB - Sources of fecal indicator bacteria are difficult to identify in watersheds that are impacted by a variety of non-point sources. We developed a molecular source tracking test using the PhyloChip microarray that detects and distinguishes fecal bacteria from humans, birds, ruminants, horses, pigs and dogs with a single test. The multiplexed assay targets 9001 different 25-mer fragments of 16S rRNA genes that are common to the bacterial community of each source type. Both random forests and SourceTracker were tested as discrimination tools, with SourceTracker classification producing superior specificity and sensitivity for all source types. Validation with 12 different mammalian sources in mixtures found 100% correct identification of the dominant source and 84-100% specificity. The test was applied to identify sources of fecal indicator bacteria in the Russian River watershed in California. We found widespread contamination by human sources during the wet season proximal to settlements with antiquated septic infrastructure and during the dry season at beaches during intense recreational activity. The test was more sensitive than common fecal indicator tests that failed to identify potential risks at these sites. Conversely, upstream beaches and numerous creeks with less reliance on onsite wastewater treatment contained no fecal signal from humans or other animals; however these waters did contain high counts of fecal indicator bacteria after rain. Microbial community analysis revealed that increased E. coli and enterococci at these locations did not co-occur with common fecal bacteria, but rather co-varied with copiotrophic bacteria that are common in freshwaters with high nutrient and carbon loading, suggesting runoff likely promoted the growth of environmental strains of E. coli and enterococci. These results indicate that machine-learning classification of PhyloChip microarray data can outperform conventional single marker tests that are used to assess health risks, and is an effective tool for distinguishing numerous fecal and environmental sources of pathogen indicators. JF - Water Research AU - Dubinsky, Eric A AU - Butkus, Steven R AU - Andersen, Gary L AD - Ecology Department, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 56 EP - 64 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 105 SN - 0043-1354, 0043-1354 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Water Resources Abstracts KW - Microbial source tracking KW - PhyloChip microarray KW - Machine learning KW - Fecal indicator bacteria KW - Pathogen TMDL KW - Microbial community analysis KW - Ruminantia KW - Contamination KW - Indicators KW - Forests KW - Nutrients KW - Microbial contamination KW - Watersheds KW - Classification KW - INE, USA, California KW - Escherichia coli KW - Biological pollutants KW - Rivers KW - Pathogenic bacteria KW - Freshwater environments KW - Microorganisms KW - Birds KW - Runoff KW - Pollution monitoring KW - Specificity KW - Nutrient loading KW - Wastewater treatment KW - Environmental factors KW - Infrastructure KW - Growth KW - Carbon KW - Upstream KW - Bacteria KW - Fecal coliforms KW - Beaches KW - Data processing KW - Pathogens KW - Tracking KW - Rain KW - rRNA 16S KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - P 2000:FRESHWATER POLLUTION KW - A 01450:Environmental Pollution & Waste Treatment KW - Q5 08524:Public health, medicines, dangerous organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1837315000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Research&rft.atitle=Microbial+source+tracking+in+impaired+watersheds+using+PhyloChip+and+machine-learning+classification&rft.au=Dubinsky%2C+Eric+A%3BButkus%2C+Steven+R%3BAndersen%2C+Gary+L&rft.aulast=Dubinsky&rft.aufirst=Eric&rft.date=2016-11-01&rft.volume=105&rft.issue=&rft.spage=56&rft.isbn=&rft.btitle=&rft.title=Water+Research&rft.issn=00431354&rft_id=info:doi/10.1016%2Fj.watres.2016.08.035 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-11-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Growth; Specificity; Pathogenic bacteria; Classification; Biological pollutants; Microbial contamination; Watersheds; Environmental factors; Tracking; Rivers; Beaches; Data processing; Contamination; Freshwater environments; Forests; Nutrients; Pathogens; Wastewater treatment; Carbon; Rain; rRNA 16S; Runoff; Bacteria; Pollution monitoring; Fecal coliforms; Nutrient loading; Infrastructure; Upstream; Escherichia coli; Microorganisms; Indicators; Birds; Ruminantia; INE, USA, California DO - http://dx.doi.org/10.1016/j.watres.2016.08.035 ER - TY - JOUR T1 - What are the effects of Agro-Ecological Zones and land use region boundaries on land resource projection using the Global Change Assessment Model? AN - 1837313555; PQ0003736034 AB - Understanding potential impacts of climate change is complicated by spatially mismatched land representations between gridded datasets and models, and land use models with larger regions defined by geopolitical and/or biophysical criteria. Here we quantify the sensitivity of Global Change Assessment Model (GCAM) outputs to the delineation of Agro-Ecological Zones (AEZs), which are normally based on historical (1961-1990) climate. We reconstruct GCAM's land regions using projected (2071-2100) climate, and find large differences in estimated future land use that correspond with differences in agricultural commodity prices and production volumes. Importantly, historically delineated AEZs experience spatially heterogeneous climate impacts over time, and do not necessarily provide more homogenous initial land productivity than projected AEZs. We conclude that non-climatic criteria for land use region delineation are likely preferable for modeling land use change in the context of climate change, and that uncertainty associated with land delineation needs to be quantified. JF - Environmental Modelling & Software AU - Di Vittorio, Alan V AU - Kyle, Page AU - Collins, William D AD - Lawrence Berkeley National Laboratory, Climate and Ecosystems Sciences Division, One Cyclotron Road, MS 74R316C, Berkeley, CA 94720-8268, USA Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 246 EP - 265 PB - Elsevier B.V., P.O. Box 800 Kidlington Oxford OX5 1DX United Kingdom VL - 85 SN - 1364-8152, 1364-8152 KW - Environment Abstracts; Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - AEZ KW - Agro-ecological zone KW - Climate change KW - GCAM KW - Integrated assessment model KW - Land use KW - Scale KW - Land Use KW - Historical account KW - Resource management KW - Environmental factors KW - Land Resources KW - Computer programs KW - Modelling KW - Sensitivity KW - Climates KW - Climate KW - Environmental impact KW - Boundaries KW - Productivity KW - AQ 00001:Water Resources and Supplies KW - ENA 06:Food & Drugs KW - Q5 08503:Characteristics, behavior and fate KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1837313555?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Modelling+%26+Software&rft.atitle=What+are+the+effects+of+Agro-Ecological+Zones+and+land+use+region+boundaries+on+land+resource+projection+using+the+Global+Change+Assessment+Model%3F&rft.au=Di+Vittorio%2C+Alan+V%3BKyle%2C+Page%3BCollins%2C+William+D&rft.aulast=Di+Vittorio&rft.aufirst=Alan&rft.date=2016-11-01&rft.volume=85&rft.issue=&rft.spage=246&rft.isbn=&rft.btitle=&rft.title=Environmental+Modelling+%26+Software&rft.issn=13648152&rft_id=info:doi/10.1016%2Fj.envsoft.2016.08.016 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-11-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Resource management; Climate change; Climate; Environmental factors; Land use; Modelling; Computer programs; Sensitivity; Historical account; Environmental impact; Land Resources; Land Use; Climates; Boundaries; Productivity DO - http://dx.doi.org/10.1016/j.envsoft.2016.08.016 ER - TY - JOUR T1 - Disposal of iron by a mutant form of lipocalin 2. AN - 1835003885; 27796299 AB - Iron overload damages many organs. Unfortunately, therapeutic iron chelators also have undesired toxicity and may deliver iron to microbes. Here we show that a mutant form (K3Cys) of endogenous lipocalin 2 (LCN2) is filtered by the kidney but can bypass sites of megalin-dependent recapture, resulting in urinary excretion. Because K3Cys maintains recognition of its cognate ligand, the iron siderophore enterochelin, this protein can capture and transport iron even in the acidic conditions of urine. Mutant LCN2 strips iron from transferrin and citrate, and delivers it into the urine. In addition, it removes iron from iron overloaded mice, including models of acquired (iron-dextran or stored red blood cells) and primary (Hfe-/-) iron overload. In each case, the mutants reduce redox activity typical of non-transferrin-bound iron. In summary, we present a non-toxic strategy for iron chelation and urinary elimination, based on manipulating an endogenous protein:siderophore:iron clearance pathway. JF - Nature communications AU - Barasch, Jonathan AU - Hollmen, Maria AU - Deng, Rong AU - Hod, Eldad A AU - Rupert, Peter B AU - Abergel, Rebecca J AU - Allred, Benjamin E AU - Xu, Katherine AU - Darrah, Shaun F AU - Tekabe, Yared AU - Perlstein, Alan AU - Wax, Rebecca AU - Bruck, Efrat AU - Stauber, Jacob AU - Corbin, Kaitlyn A AU - Buchen, Charles AU - Slavkovich, Vesna AU - Graziano, Joseph AU - Spitalnik, Steven L AU - Bao, Guanhu AU - Strong, Roland K AU - Qiu, Andong AD - Columbia University, Russ Berrie Medical Science Pavilion, 1150 Saint Nicholas Avenue, Rm 411, New York, New York 10032, USA. ; Fred Hutchinson Cancer Research Center, Basic Sciences Division, University of Washington School of Medicine Biochemistry, Immunology, Mail Stop A3-025, Seattle, Washington 98109, USA. ; Lawrence Berkeley National Laboratory, Chemical Sciences Division, BioActinide Chemistry Group, MS 70A-1150, One Cyclotron Road, Berkeley, California 94720, USA. ; State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Sciences, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China. Y1 - 2016/10/31/ PY - 2016 DA - 2016 Oct 31 SP - 12973 VL - 7 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1835003885?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+communications&rft.atitle=Disposal+of+iron+by+a+mutant+form+of+lipocalin+2.&rft.au=Barasch%2C+Jonathan%3BHollmen%2C+Maria%3BDeng%2C+Rong%3BHod%2C+Eldad+A%3BRupert%2C+Peter+B%3BAbergel%2C+Rebecca+J%3BAllred%2C+Benjamin+E%3BXu%2C+Katherine%3BDarrah%2C+Shaun+F%3BTekabe%2C+Yared%3BPerlstein%2C+Alan%3BWax%2C+Rebecca%3BBruck%2C+Efrat%3BStauber%2C+Jacob%3BCorbin%2C+Kaitlyn+A%3BBuchen%2C+Charles%3BSlavkovich%2C+Vesna%3BGraziano%2C+Joseph%3BSpitalnik%2C+Steven+L%3BBao%2C+Guanhu%3BStrong%2C+Roland+K%3BQiu%2C+Andong&rft.aulast=Barasch&rft.aufirst=Jonathan&rft.date=2016-10-31&rft.volume=7&rft.issue=&rft.spage=12973&rft.isbn=&rft.btitle=&rft.title=Nature+communications&rft.issn=2041-1723&rft_id=info:doi/10.1038%2Fncomms12973 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-10-31 N1 - Date revised - 2017-02-28 N1 - SuppNotes - Cited By: BMC Nephrol. 2013 Mar 25;14:70 [23531037] J Am Chem Soc. 2006 Aug 30;128(34):10998-9 [16925397] Gen Pharmacol. 1978;9(2):123-7 [149036] Nucleic Acids Res. 2000 Jan 1;28(1):235-42 [10592235] Blood. 2005 Nov 1;106(9):3242-50 [16020512] J Mol Med (Berl). 2006 May;84(5):349-64 [16604332] Proc Natl Acad Sci U S A. 2001 Oct 23;98(22):12491-6 [11606717] J Biol Chem. 1989 Mar 15;264(8):4417-22 [2466835] Biochim Biophys Acta. 1970 Aug 14;215(2):393-402 [4926450] Cell Mol Life Sci. 2005 Nov;62(22):2560-75 [16261254] Anal Biochem. 1996 Jun 1;237(2):260-73 [8660575] Expert Opin Drug Saf. 2007 May;6(3):235-9 [17480173] FEBS Lett. 2005 Jan 31;579(3):773-7 [15670845] Nat Rev Mol Cell Biol. 2002 Apr;3(4):256-66 [11994745] Blood. 2010 May 27;115(21):4284-92 [20299509] Am J Physiol. 1996 Jul;271(1 Pt 2):F50-61 [8760243] Acta Crystallogr D Biol Crystallogr. 2006 Jan;62(Pt 1):48-57 [16369093] Biochim Biophys Acta. 2009 Jul;1790(7):694-701 [18992790] J Am Coll Cardiol. 2012 Jan 17;59(3):246-55 [22240130] J Biol Chem. 2012 Jan 2;287(1):159-69 [22084236] Biometals. 1996 Apr;9(2):177-83 [8744900] Gastroenterology. 2004 Nov;127(5 Suppl 1):S79-86 [15508107] J Clin Invest. 2005 Mar;115(3):610-21 [15711640] Structure. 2005 Jan;13(1):29-41 [15642259] N Engl J Med. 1998 Aug 13;339(7):468-9 [9700182] Ann N Y Acad Sci. 1964 Oct 7;119:758-68 [14219455] J Am Soc Nephrol. 2009 Aug;20(8):1687-92 [19628667] Blood. 2004 Jul 1;104(1):34-9 [14988152] Blood. 2000 May 1;95(9):2975-82 [10779448] Nucleic Acids Res. 2007 Jul;35(Web Server issue):W375-83 [17452350] Proc Natl Acad Sci U S A. 2006 Dec 5;103(49):18499-503 [17132740] N Engl J Med. 1999 Dec 23;341(26):1986-95 [10607817] Eur Radiol. 2007 Dec;17(12):3025-30 [17549485] Acta Crystallogr D Biol Crystallogr. 2001 Jan;57(Pt 1):122-33 [11134934] Can Med Assoc J. 1984 Oct 15;131(8):895-901 [6593112] FASEB J. 2003 Feb;17(2):247-9 [12475886] Acta Crystallogr D Biol Crystallogr. 1997 May 1;53(Pt 3):240-55 [15299926] J Am Soc Nephrol. 1998 Oct;9(10):1767-76 [9773777] Mol Cell. 2002 Nov;10 (5):1033-43 [12453412] RSC Adv. 2015 Jan 1;5(36):28527-28535 [26257890] Ann Intern Med. 1987 Nov;107(5):678-80 [3662280] N Engl J Med. 1985 Jan 17;312(3):159-63 [2981404] Nat Rev Nephrol. 2013 Jul;9(7):385-98 [23670084] Scand J Clin Lab Invest. 1995 Nov;55(7):577-88 [8633182] Nat Rev Gastroenterol Hepatol. 2010 Jan;7(1):50-8 [19918260] J Cell Biol. 1999 Mar 8;144(5):1057-67 [10085301] Nat Chem Biol. 2010 Aug;6(8):602-9 [20581821] Proc Natl Acad Sci U S A. 2006 Oct 31;103(44):16502-7 [17060628] Nature. 2004 Dec 16;432(7019):917-21 [15531878] Kidney Int. 2013 Oct;84(4):756-66 [23615502] Acta Crystallogr D Biol Crystallogr. 1994 Sep 1;50(Pt 5):760-3 [15299374] Blood. 2009 Oct 22;114(17 ):3642-51 [19700664] J Biol Chem. 1978 Mar 25;253(6):1930-7 [204636] Biochem J. 1993 May 1;291 ( Pt 3):901-5 [7683877] Acta Crystallogr D Biol Crystallogr. 2004 Dec;60(Pt 12 Pt 1):2126-32 [15572765] Proc Natl Acad Sci U S A. 1987 Apr;84(7):1769-73 [3470756] Dev Cell. 2009 Jan;16(1):35-46 [19154717] N Engl J Med. 1986 Apr 3;314(14):869-73 [3485251] Am J Physiol. 1992 Oct;263(4 Pt 2):F637-41 [1384359] Clin Cancer Res. 2005 Aug 1;11(15):5390-5 [16061852] Kidney Int. 2005 Feb;67(2):691-7 [15673318] Am J Transplant. 2016 Mar;16(3):808-20 [26595644] N Engl J Med. 2008 Jan 17;358(3):221-30 [18199861] Acta Crystallogr D Biol Crystallogr. 2010 Jan;66(Pt 1):22-5 [20057045] Methods Enzymol. 1990;186:1-85 [2172697] Conflict of Interest: J.B. and A.Q. declare patent applications with Columbia University for the use of LCN2 (Scn or NGAL). R.K.S., P.B.R. and R.J.A. declare patent applications with Fred Hutchinson Cancer Research Center for the use of Scn (NGAL). All the other authors declare no competing financial interest. N1 - Last updated - 2017-02-28 DO - http://dx.doi.org/10.1038/ncomms12973 ER - TY - JOUR T1 - How Do Radionuclides Accumulate in Marine Organisms? A Case Study of Europium with Aplysina cavernicola. AN - 1835363918; 27588898 AB - In the ocean, complex interactions between natural and anthropogenic radionuclides, seawater, and diverse marine biota provide a unique window through which to examine ecosystem and trophic transfer mechanisms in cases of accidental dissemination. The nature of interaction between radionuclides, the marine environment, and marine species is therefore essential for better understanding transfer mechanisms from the hydrosphere to the biosphere. Although data pertaining to the rate of global transfer are often available, little is known regarding the mechanism of environmental transport and uptake of heavy radionuclides by marine species. Among marine species, sponges are immobile active filter feeders and have been identified as hyperaccumulators of several heavy metals. We have selected the Mediterranean sponge Aplysina cavernicola as a model species for this study. Actinide elements are not the only source of radioactive release in cases of civilian nuclear events; however, their physicochemical transfer mechanisms to marine species remain largely unknown. We have targeted europium(III) as a representative of the trivalent actinides such as americium or curium. To unravel biological uptake mechanisms of europium in A. cavernicola, we have combined radiometric (γ) measurements with spectroscopic (time-resolved laser-induced fluorescence spectroscopy, TRLIFS, and X-ray absorption near-edge structure, XANES) and imaging (transmission electron microscopy, TEM, and scanning transmission X-ray microscopy, STXM) techniques. We have observed that the colloids of NaEu(CO3)2·nH2O formed in seawater are taken up by A. cavernicola with no evidence that lethal dose has been reached in our working conditions. Spectroscopic results suggest that there is no change of speciation during uptake. Finally, TEM and STXM images recorded at different locations across a sponge cross section, together with differential cell separation, indicate the presence of europium particles (around 200 nm) mainly located in the skeleton and toward the outer surface of the sponge. JF - Environmental science & technology AU - Maloubier, Melody AU - Shuh, David K AU - Minasian, Stefan G AU - Pacold, Joseph I AU - Solari, Pier-Lorenzo AU - Michel, Hervé AU - Oberhaensli, François R AU - Bottein, Yasmine AU - Monfort, Marguerite AU - Moulin, Christophe AU - Den Auwer, Christophe AD - Institut de Chimie de Nice, Université Côte d'Azur and Centre National de la Recherche Scientifique , 06108 Nice, France. ; Chemical Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States. ; Synchrotron Soleil , L'Orme des Merisiers, BP 48, Saint-Aubin, F-91192 Gif-sur-Yvette Cedex, France. ; Monaco Environment Laboratory, International Atomic Energy Agency , 4 Quai Antoine Ier, 98000, Monaco. ; Commissariat à l'Énergie Atomique, Direction des Applications Militaires, DIF , F-91297 Arpajon, France. Y1 - 2016/10/04/ PY - 2016 DA - 2016 Oct 04 SP - 10730 EP - 10738 VL - 50 IS - 19 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1835363918?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=How+Do+Radionuclides+Accumulate+in+Marine+Organisms%3F+A+Case+Study+of+Europium+with+Aplysina+cavernicola.&rft.au=Maloubier%2C+Melody%3BShuh%2C+David+K%3BMinasian%2C+Stefan+G%3BPacold%2C+Joseph+I%3BSolari%2C+Pier-Lorenzo%3BMichel%2C+Herv%C3%A9%3BOberhaensli%2C+Fran%C3%A7ois+R%3BBottein%2C+Yasmine%3BMonfort%2C+Marguerite%3BMoulin%2C+Christophe%3BDen+Auwer%2C+Christophe&rft.aulast=Maloubier&rft.aufirst=Melody&rft.date=2016-10-04&rft.volume=50&rft.issue=19&rft.spage=10730&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=1520-5851&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-09-15 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 ER - TY - JOUR T1 - Se Isotopes as Groundwater Redox Indicators: Detecting Natural Attenuation of Se at an in Situ Recovery U Mine. AN - 1835356638; 27547844 AB - One of the major ecological concerns associated with the in situ recovery (ISR) of uranium (U) is the environmental release of soluble, toxic selenium (Se) oxyanions generated by mining. Post-mining natural attenuation by the residual reductants in the ore body and reduced down-gradient sediments should mitigate the risk of Se contamination in groundwater. In this work, we investigate the Se concentrations and Se isotope systematics of groundwater and of U ore bearing sediments from an ISR site at Rosita, TX, USA. Our results show that selenate (Se(VI)) is the dominant Se species in Rosita groundwater, and while several up-gradient wells have elevated Se(VI), the majority of the ore zone and down-gradient wells have little or no Se oxyanions. In addition, the δ82SeVI of Rosita groundwater is generally elevated relative to the U ore up to +6.14‰, with the most enriched values observed in the ore-zone wells. Increasing δ82Se with decreasing Se(VI) conforms to a Rayleigh type distillation model with an ε of -2.25‰ ± 0.61‰, suggesting natural Se(VI) reduction occurring along the hydraulic gradient at the Rosita ISR site. Furthermore, our results show that Se isotopes are excellent sensors for detecting and monitoring post-mining natural attenuation of Se oxyanions at ISR sites. JF - Environmental science & technology AU - Basu, Anirban AU - Schilling, Kathrin AU - Brown, Shaun T AU - Johnson, Thomas M AU - Christensen, John N AU - Hartmann, Matt AU - Reimus, Paul W AU - Heikoop, Jeffrey M AU - Woldegabriel, Giday AU - DePaolo, Donald J AD - Department of Earth and Planetary Science, University of California , 307 McCone Hall, Berkeley, California 94720, United States. ; Department of Environmental Science, Policy and Management, University of California , 130 Mulford Hall, Berkeley, California 94720, United States. ; Department of Geology, University of Illinois at Urbana-Champaign , 605 East Springfield Avenue, Champaign, Illinois 61820, United States. ; Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States. ; Uranium Resources, Inc. , 6950 South Potomac Street, Suite 300, Centennial, Colorado 80112, United States. ; Earth and Environmental Sciences Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States. Y1 - 2016/10/04/ PY - 2016 DA - 2016 Oct 04 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1835356638?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Se+Isotopes+as+Groundwater+Redox+Indicators%3A+Detecting+Natural+Attenuation+of+Se+at+an+in+Situ+Recovery+U+Mine.&rft.au=Basu%2C+Anirban%3BSchilling%2C+Kathrin%3BBrown%2C+Shaun+T%3BJohnson%2C+Thomas+M%3BChristensen%2C+John+N%3BHartmann%2C+Matt%3BReimus%2C+Paul+W%3BHeikoop%2C+Jeffrey+M%3BWoldegabriel%2C+Giday%3BDePaolo%2C+Donald+J&rft.aulast=Basu&rft.aufirst=Anirban&rft.date=2016-10-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=1520-5851&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-08-22 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 ER - TY - JOUR T1 - Closure of Fracture Due to Cover Stress Re-establishment After Coal Mining AN - 1861081711; 783622-17 AB - In situ measurements of deformations, stresses, and closure of fractures, affecting water inflow following coal mining, are challenging due to the inaccessibility of fractured rock. In this paper, the authors studied the closure process of the fractured rock mass with the cover stress re-establishment based on a theoretical analysis and a scale model testing. A quantitative analysis is used to study the fracture distribution in the fractured zone. A function to describe a fracture aperture distribution in the fractured zone is proposed, which takes into account the curvature and thickness of the fractured rock. The theoretical analysis and a scale model testing both indicate that the cover stress re-establishment with mining distance increasing and the relationship between the fracture closure and cover stress re-establishment both satisfy a logarithmic function. The scale model test also shows the following features: (1) the fracture ratio (which is the fracture area divided by the total area of fracture and intact rock with a unit width in the vertical or horizontal direction) in the lower part of the fractured rock mass is greater than that in the upper part; (2) the initially fast decreased of fracture ratios is then followed by a slower decrease during the cover stress re-establishment process; (3) in the upper part of the rock mass, the vertical directional fractures with small apertures are being closed with cover stress re-establishment, which indicates an increase in the water resistance reducing the seepage from these parts of the fractured zone. This study improves the general understanding of the fracture closure process and cover stress re-establishment in the fractured rock mass after coal mining ceased, and provides a theoretical basis for water resource protection in case of underground coal mining. Copyright 2016 Springer International Publishing Switzerland JF - Geotechnical and Geological Engineering AU - Wang, Wenxue AU - Jiang, Tong AU - Faybishenko, Boris AU - Wang, Zhongfu AU - Hu, Wei AU - Zhao, Qingjie Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 1525 EP - 1537 PB - Springer, Dordrecht VL - 34 IS - 5 SN - 0960-3182, 0960-3182 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861081711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geotechnical+and+Geological+Engineering&rft.atitle=Closure+of+Fracture+Due+to+Cover+Stress+Re-establishment+After+Coal+Mining&rft.au=Wang%2C+Wenxue%3BJiang%2C+Tong%3BFaybishenko%2C+Boris%3BWang%2C+Zhongfu%3BHu%2C+Wei%3BZhao%2C+Qingjie&rft.aulast=Wang&rft.aufirst=Wenxue&rft.date=2016-10-01&rft.volume=34&rft.issue=5&rft.spage=1525&rft.isbn=&rft.btitle=&rft.title=Geotechnical+and+Geological+Engineering&rft.issn=09603182&rft_id=info:doi/10.1007%2Fs10706-016-0059-x L2 - http://link.springer.com/journal/10706 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Last updated - 2017-01-24 DO - http://dx.doi.org/10.1007/s10706-016-0059-x ER - TY - JOUR T1 - Land-atmosphere coupling and climate prediction over the U.S. Southern Great Plains AN - 1850781521; PQ0003921058 AB - Biases in land-atmosphere coupling in climate models can contribute to climate prediction biases, but land models are rarely evaluated in the context of this coupling. We tested land-atmosphere coupling and explored effects of land surface parameterizations on climate prediction in a single-column version of the National Center for Atmospheric Research Community Earth System Model (CESM1.2.2) and an off-line Community Land Model (CLM4.5). The correlation between leaf area index (LAI) and surface evaporative fraction (ratio of latent to total turbulent heat flux) was substantially underpredicted compared to observations in the U.S. Southern Great Plains, while the correlation between soil moisture and evaporative fraction was overpredicted by CLM4.5. To estimate the impacts of these errors on climate prediction, we modified CLM4.5 by prescribing observed LAI, increasing soil resistance to evaporation, increasing minimum stomatal conductance, and increasing leaf reflectance. The modifications improved the predicted soil moisture-evaporative fraction (EF) and LAI-EF correlations in off-line CLM4.5 and reduced the root-mean-square error in summer 2 m air temperature and precipitation in the coupled model. The modifications had the largest effect on prediction during a drought in summer 2006, when a warm bias in daytime 2 m air temperature was reduced from +6 degree C to a smaller cold bias of -1.3 degree C, and a corresponding dry bias in precipitation was reduced from -111 mm to -23 mm. The role of vegetation in droughts and heat waves is underpredicted in CESM1.2.2, and improvements in land surface models can improve prediction of climate extremes. Key Points * Surface energy partitioning is too strongly correlated with soil moisture in CESM1.2.2 * Surface energy partitioning is too weakly dependent on vegetation state compared to observations * Improving the terrestrial segment of land-atmosphere coupling improved summer climate prediction JF - Journal of Geophysical Research: Atmospheres AU - Williams, Ian N AU - Lu, Yaqiong AU - Kueppers, Lara M AU - Riley, William J AU - Biraud, Sebastien C AU - Bagley, Justin E AU - Torn, Margaret S AD - Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA. Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 12 EP - 12,144 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 20 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Reflectance KW - Evaporation KW - Climate prediction KW - Turbulent heat flux KW - Summer climate KW - Correlations KW - Soil Water KW - Drought KW - Air temperature KW - Climate and vegetation KW - Soils KW - Climatology KW - Droughts KW - Modelling KW - Abiotic factors KW - Atmospheric precipitations KW - Climate models KW - Air Temperature KW - Climates KW - Climate KW - Leaves KW - Vegetation KW - Precipitation KW - Energy KW - Moisture Content KW - Heat waves KW - Soil moisture KW - Land-atmosphere interaction KW - Future climates KW - SW 0810:General KW - Q2 09244:Air-sea coupling KW - M2 556.13:Evaporation/Evapotranspiration (556.13) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1850781521?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Atmospheres&rft.atitle=Land-atmosphere+coupling+and+climate+prediction+over+the+U.S.+Southern+Great+Plains&rft.au=Williams%2C+Ian+N%3BLu%2C+Yaqiong%3BKueppers%2C+Lara+M%3BRiley%2C+William+J%3BBiraud%2C+Sebastien+C%3BBagley%2C+Justin+E%3BTorn%2C+Margaret+S&rft.aulast=Williams&rft.aufirst=Ian&rft.date=2016-10-01&rft.volume=121&rft.issue=20&rft.spage=12&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2016JD025223 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Last updated - 2016-12-21 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Climate prediction; Climate; Soils; Leaves; Droughts; Air temperature; Abiotic factors; Modelling; Reflectance; Climate models; Evaporation; Turbulent heat flux; Correlations; Summer climate; Precipitation; Drought; Climate and vegetation; Climatology; Heat waves; Land-atmosphere interaction; Soil moisture; Future climates; Air Temperature; Energy; Climates; Vegetation; Moisture Content; Soil Water DO - http://dx.doi.org/10.1002/2016JD025223 ER - TY - JOUR T1 - Constraining the sulfur dioxide degassing flux from Turrialba Volcano, Costa Rica using unmanned aerial system measurements AN - 1840615502; 2016-098878 AB - Observed sulfur dioxide (SO (sub 2) ) mixing ratios onboard unmanned aerial systems (UAS) during March 11-13, 2013 are used to constrain the three-day averaged SO (sub 2) degassing flux from Turrialba volcano within a Bayesian inverse modeling framework. A mesoscale model coupled with Lagrangian stochastic particle backward trajectories is used to quantify the source-receptor relationships at very high spatial resolutions (i.e., < 1 km). The model shows better performance in reproducing the near-surface meteorological properties and observed SO (sub 2) variations when using a first-order closure non-local planetary boundary layer (PBL) scheme. The optimized SO (sub 2) degassing fluxes vary from 0.59 + or - 0.37 to 0.83 + or - 0.33 kt d (super -1) depending on the PBL scheme used. These fluxes are in good agreement with ground-based gas flux measurements, and correspond to corrective scale factors of 8-12 to the posteruptive SO (sub 2) degassing rate in the AeroCom emission inventory. The maximum a posteriori solution for the SO (sub 2) flux is highly sensitive to the specification of prior and observational errors, and relatively insensitive to the SO (sub 2) loss term and temporal averaging of observations. Our results indicate relatively low degassing activity but sustained sulfur emissions from Turrialba volcano to the troposphere during March 2013. This study demonstrates the utility of low-cost small UAS platforms for volcanic gas composition and flux analysis. JF - Journal of Volcanology and Geothermal Research AU - Xi, Xin AU - Johnson, Matthew S AU - Jeong, Seongeun AU - Fladeland, Matthew AU - Pieri, David AU - Diaz, Jorge Andres AU - Bland, Geoffrey L Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 110 EP - 118 PB - Elsevier, Amsterdam VL - 325 SN - 0377-0273, 0377-0273 KW - sulfur dioxide KW - Turrialba KW - Costa Rica KW - trajectories KW - atmosphere KW - troposphere KW - measurement KW - gases KW - models KW - unmanned aerial systems KW - errors KW - transport KW - sensitivity analysis KW - mixing KW - eruptions KW - geochemical methods KW - volcanoes KW - sulfur KW - Central America KW - boundary layer KW - airborne methods KW - 24:Quaternary geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840615502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Constraining+the+sulfur+dioxide+degassing+flux+from+Turrialba+Volcano%2C+Costa+Rica+using+unmanned+aerial+system+measurements&rft.au=Xi%2C+Xin%3BJohnson%2C+Matthew+S%3BJeong%2C+Seongeun%3BFladeland%2C+Matthew%3BPieri%2C+David%3BDiaz%2C+Jorge+Andres%3BBland%2C+Geoffrey+L&rft.aulast=Xi&rft.aufirst=Xin&rft.date=2016-10-01&rft.volume=325&rft.issue=&rft.spage=110&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2Fj.jvolgeores.2016.06.023 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 45 N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2016-11-17 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - airborne methods; atmosphere; boundary layer; Central America; Costa Rica; errors; eruptions; gases; geochemical methods; measurement; mixing; models; sensitivity analysis; sulfur; sulfur dioxide; trajectories; transport; troposphere; Turrialba; unmanned aerial systems; volcanoes DO - http://dx.doi.org/10.1016/j.jvolgeores.2016.06.023 ER - TY - JOUR T1 - Does crystallographic anisotropy prevent the conventional treatment of aqueous mineral reactivity? A case study based on K-feldspar dissolution kinetics AN - 1840615412; 2016-094241 AB - Which conceptual framework should be preferred to develop mineral dissolution rate laws, and how the aqueous mineral reactivity should be measured? For over 30 years, the classical strategy to model solid dissolution over large space and time scales has relied on so-called kinetic rate laws derived from powder dissolution experiments. In the present study, we provide detailed investigations of the dissolution kinetics of K-feldspar as a function of surface orientation and chemical affinity which question the commonplace belief that elementary mechanisms and resulting rate laws can be retrieved from conventional powder dissolution experiments. Nanometer-scale surface measurements evidenced that K-feldspar dissolution is an anisotropic process, where the face-specific dissolution rate satisfactorily agrees with the periodic bond chain (PBC) theory. The chemical affinity of the reaction was shown to impact differently the various faces of a single crystal, controlling the spontaneous nucleation of etch pits which, in turn, drive the dissolution process. These results were used to develop a simple numerical model which revealed that single crystal dissolution rates vary with reaction progress. Overall, these results cast doubt on the conventional protocol which is used to measure mineral dissolution rates and develop kinetic rate laws, because mineral reactivity is intimately related to the morphology of dissolving crystals, which remains totally uncontrolled in powder dissolution experiments. Beyond offering an interpretive framework to understand the large discrepancies consistently reported between sources and across space scales, the recognition of the anisotropy of crystal reactivity challenges the classical approach for modeling dissolution and weathering, and may be drawn upon to develop alternative treatments of aqueous mineral reactivity. JF - Geochimica et Cosmochimica Acta AU - Pollet-Villard, Marion AU - Daval, Damien AU - Ackerer, Philippe AU - Saldi, Giuseppe D AU - Wild, Bastien AU - Knauss, Kevin G AU - Fritz, Bertrand Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 294 EP - 308 PB - Elsevier, New York, NY VL - 190 SN - 0016-7037, 0016-7037 KW - silicates KW - anisotropic materials KW - K-feldspar KW - X-ray diffraction data KW - buffers KW - mass spectra KW - aqueous solutions KW - reactivity KW - major elements KW - alkali feldspar KW - framework silicates KW - spectra KW - kinetics KW - pH KW - orientation KW - experimental studies KW - free energy KW - electron microscopy data KW - solubility KW - models KW - ICP mass spectra KW - case studies KW - orthoclase KW - crystallization KW - crystal chemistry KW - feldspar group KW - SEM data KW - backscattering KW - 01B:Mineralogy of silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840615412?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Does+crystallographic+anisotropy+prevent+the+conventional+treatment+of+aqueous+mineral+reactivity%3F+A+case+study+based+on+K-feldspar+dissolution+kinetics&rft.au=Pollet-Villard%2C+Marion%3BDaval%2C+Damien%3BAckerer%2C+Philippe%3BSaldi%2C+Giuseppe+D%3BWild%2C+Bastien%3BKnauss%2C+Kevin+G%3BFritz%2C+Bertrand&rft.aulast=Pollet-Villard&rft.aufirst=Marion&rft.date=2016-10-01&rft.volume=190&rft.issue=&rft.spage=294&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.07.007 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 63 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-11-17 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkali feldspar; anisotropic materials; aqueous solutions; backscattering; buffers; case studies; crystal chemistry; crystallization; electron microscopy data; experimental studies; feldspar group; framework silicates; free energy; ICP mass spectra; K-feldspar; kinetics; major elements; mass spectra; models; orientation; orthoclase; pH; reactivity; SEM data; silicates; solubility; spectra; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.gca.2016.07.007 ER - TY - JOUR T1 - Evaluation of sulfur spinel compounds for multivalent battery cathode applications AN - 1837342990; PQ0003740101 AB - The rapid growth of portable consumer electronics and electric vehicles demands new battery technologies with greater energy stored at a reduced cost. Energy storage solutions based on multivalent metals, such as Mg, could significantly increase the energy density as compared to lithium-ion based technology. In this paper, we employ density functional theory calculations to systematically evaluate the performance, such as thermodynamic stability, ion diffusivity and voltage, of a group of 3d transition-metal sulfur-spinel compounds (21 in total) for multivalent cathode applications. Based on our calculations, Cr2S4, Ti2S4 and Mn2S4 spinel compounds exhibit improved Mg2+ mobility (diffusion activation energy <650 meV) relative to their oxide counterparts, however the improved mobility comes at the expense of lower voltage and thereby lower theoretical specific energy. Ca2+ intercalating into Cr2S4 spinel exhibits a low diffusion activation barrier of 500 meV and a voltage of similar to 2 V, revealing a potential cathode for use in Ca rechargeable batteries. JF - Energy & Environmental Science AU - Liu, Miao AU - Jain, Anubhav AU - Rong, Ziqin AU - Qu, Xiaohui AU - Canepa, Pieremanuele AU - Malik, Rahul AU - Ceder, Gerbrand AU - Persson, Kristin A AD - Electrochemical Technologies Group; Lawrence Berkeley National Laboratory; CA 94720; USA Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 3201 EP - 3209 PB - Royal Society of Chemistry, c/o Springer-Verlag New York Inc. Secaucus New Jersey 07096 2485 United States VL - 9 IS - 10 SN - 1754-5692, 1754-5692 KW - Environment Abstracts KW - Sulfur KW - Storage KW - Metals KW - Batteries KW - Mobility KW - Thermodynamics KW - Energy KW - Diffusion KW - Electronics industry wastes KW - Technology KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1837342990?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%26+Environmental+Science&rft.atitle=Evaluation+of+sulfur+spinel+compounds+for+multivalent+battery+cathode+applications&rft.au=Liu%2C+Miao%3BJain%2C+Anubhav%3BRong%2C+Ziqin%3BQu%2C+Xiaohui%3BCanepa%2C+Pieremanuele%3BMalik%2C+Rahul%3BCeder%2C+Gerbrand%3BPersson%2C+Kristin+A&rft.aulast=Liu&rft.aufirst=Miao&rft.date=2016-10-01&rft.volume=9&rft.issue=10&rft.spage=3201&rft.isbn=&rft.btitle=&rft.title=Energy+%26+Environmental+Science&rft.issn=17545692&rft_id=info:doi/10.1039%2Fc6ee01731b LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-11-01 N1 - Number of references - 47 N1 - Last updated - 2016-11-23 N1 - SubjectsTermNotLitGenreText - Storage; Sulfur; Metals; Thermodynamics; Mobility; Batteries; Energy; Electronics industry wastes; Diffusion; Technology DO - http://dx.doi.org/10.1039/c6ee01731b ER - TY - JOUR T1 - Genetic dissection of chlorate respiration in Pseudomonas stutzeri PDA reveals syntrophic (per)chlorate reduction. AN - 1826641834; 26411776 AB - Genes important for growth of Pseudomonas stutzeri PDA on chlorate were identified using a randomly DNA bar-coded transposon mutant library. During chlorate reduction, mutations in genes encoding the chlorate reductase clrABC, predicted molybdopterin cofactor chaperon clrD, molybdopterin biosynthesis and two genes of unknown function (clrE, clrF) had fitness defects in pooled mutant assays (Bar-seq). Markerless in-frame deletions confirmed that clrA, clrB and clrC were essential for chlorate reduction, while clrD, clrE and clrF had less severe growth defects. Interestingly, the key detoxification gene cld was essential for chlorate reduction in isogenic pure culture experiments, but showed only minor fitness defects in Bar-seq experiments. We hypothesized this was enabled through chlorite dismutation by the community, as most strains in the Bar-seq library contained an intact cld. In support of this, Δcld grew with wild-type PDA or ΔclrA, and purified Cld also restored growth to the Δcld mutant. Expanding on this, wild-type PDA and a Δcld mutant of the perchlorate reducer Azospira suillum PS grew on perchlorate in co-culture, but not individually. These results demonstrate that co-occurrence of cld and a chloroxyanion reductase within a single organism is not necessary and raises the possibility of syntrophic (per)chlorate respiration in the environment. JF - Environmental microbiology AU - Clark, Iain C AU - Youngblut, Matt AU - Jacobsen, Gillian AU - Wetmore, Kelly M AU - Deutschbauer, Adam AU - Lucas, Lauren AU - Coates, John D AD - Department of Civil and Environmental Engineering, University of California, Berkeley, CA, 94720, USA. ; Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USA. ; Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. ; Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USA. jdcoates@berkeley.edu. Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 3342 EP - 3354 VL - 18 IS - 10 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1826641834?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+microbiology&rft.atitle=Genetic+dissection+of+chlorate+respiration+in+Pseudomonas+stutzeri%E2%80%85PDA+reveals+syntrophic+%28per%29chlorate+reduction.&rft.au=Clark%2C+Iain+C%3BYoungblut%2C+Matt%3BJacobsen%2C+Gillian%3BWetmore%2C+Kelly+M%3BDeutschbauer%2C+Adam%3BLucas%2C+Lauren%3BCoates%2C+John+D&rft.aulast=Clark&rft.aufirst=Iain&rft.date=2016-10-01&rft.volume=18&rft.issue=10&rft.spage=3342&rft.isbn=&rft.btitle=&rft.title=Environmental+microbiology&rft.issn=1462-2920&rft_id=info:doi/10.1111%2F1462-2920.13068 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2015-09-28 N1 - Date revised - 2017-02-17 N1 - Genetic sequence - AAV46153; GENBANK N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1111/1462-2920.13068 ER - TY - JOUR T1 - Novel Metal Cation Resistance Systems from Mutant Fitness Analysis of Denitrifying Pseudomonas stutzeri. AN - 1820594300; 27474723 AB - UNLABELLEDMetal ion transport systems have been studied extensively, but the specificity of a given transporter is often unclear from amino acid sequence data alone. In this study, predicted Cu(2+) and Zn(2+) resistance systems in Pseudomonas stutzeri strain RCH2 are compared with those experimentally implicated in Cu(2+) and Zn(2+) resistance, as determined by using a DNA-barcoded transposon mutant library. Mutant fitness data obtained under denitrifying conditions are combined with regulon predictions to yield a much more comprehensive picture of Cu(2+) and Zn(2+) resistance in strain RCH2. The results not only considerably expand what is known about well-established metal ion exporters (CzcCBA, CzcD, and CusCBA) and their accessory proteins (CzcI and CusF), they also reveal that isolates with mutations in some predicted Cu(2+) resistance systems do not show decreased fitness relative to the wild type when exposed to Cu(2+) In addition, new genes are identified that have no known connection to Zn(2+) (corB, corC, Psest_3226, Psest_3322, and Psest_0618) or Cu(2+) resistance (Mrp antiporter subunit gene, Psest_2850, and Psest_0584) but are crucial for resistance to these metal cations. Growth of individual deletion mutants lacking corB, corC, Psest_3226, or Psest_3322 confirmed the observed Zn-dependent phenotypes. Notably, to our knowledge, this is the first time a bacterial homolog of TMEM165, a human gene responsible for a congenital glycosylation disorder, has been deleted and the resulting strain characterized. Finally, the fitness values indicate Cu(2+)- and Zn(2+)-based inhibition of nitrite reductase and interference with molybdenum cofactor biosynthesis for nitrate reductase. These results extend the current understanding of Cu(2+) and Zn(2+) efflux and resistance and their effects on denitrifying metabolism.IMPORTANCEIn this study, genome-wide mutant fitness data in P. stutzeri RCH2 combined with regulon predictions identify several proteins of unknown function that are involved in resisting zinc and copper toxicity. For zinc, these include a member of the UPF0016 protein family that was previously implicated in Ca(2+)/H(+) antiport and a human congenital glycosylation disorder, CorB and CorC, which were previously linked to Mg(2+) transport, and Psest_3322 and Psest_0618, two proteins with no characterized homologs. Experiments using mutants lacking Psest_3226, Psest_3322, corB, corC, or czcI verified their proposed functions, which will enable future studies of these little-characterized zinc resistance determinants. Likewise, Psest_2850, annotated as an ion antiporter subunit, and the conserved hypothetical protein Psest_0584 are implicated in copper resistance. Physiological connections between previous studies and phenotypes presented here are discussed. Functional and mechanistic understanding of transport proteins improves the understanding of systems in which members of the same protein family, including those in humans, can have different functions. JF - Applied and environmental microbiology AU - Vaccaro, Brian J AU - Lancaster, W Andrew AU - Thorgersen, Michael P AU - Zane, Grant M AU - Younkin, Adam D AU - Kazakov, Alexey E AU - Wetmore, Kelly M AU - Deutschbauer, Adam AU - Arkin, Adam P AU - Novichkov, Pavel S AU - Wall, Judy D AU - Adams, Michael W W AD - Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia, USA. ; Department of Biochemistry, University of Missouri, Columbia, Missouri, USA. ; Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA. ; Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia, USA adams@bmb.uga.edu. Y1 - 2016/10/01/ PY - 2016 DA - 2016 Oct 01 SP - 6046 EP - 6056 VL - 82 IS - 19 KW - Index Medicus UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1820594300?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+environmental+microbiology&rft.atitle=Novel+Metal+Cation+Resistance+Systems+from+Mutant+Fitness+Analysis+of+Denitrifying+Pseudomonas+stutzeri.&rft.au=Vaccaro%2C+Brian+J%3BLancaster%2C+W+Andrew%3BThorgersen%2C+Michael+P%3BZane%2C+Grant+M%3BYounkin%2C+Adam+D%3BKazakov%2C+Alexey+E%3BWetmore%2C+Kelly+M%3BDeutschbauer%2C+Adam%3BArkin%2C+Adam+P%3BNovichkov%2C+Pavel+S%3BWall%2C+Judy+D%3BAdams%2C+Michael+W+W&rft.aulast=Vaccaro&rft.aufirst=Brian&rft.date=2016-10-01&rft.volume=82&rft.issue=19&rft.spage=6046&rft.isbn=&rft.btitle=&rft.title=Applied+and+environmental+microbiology&rft.issn=1098-5336&rft_id=info:doi/10.1128%2FAEM.01845-16 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-09-17 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1128/AEM.01845-16 ER - TY - JOUR T1 - Isotopic insights into methane production, oxidation, and emissions in Arctic polygon tundra AN - 1819142058; PQ0003628605 AB - Arctic wetlands are currently net sources of atmospheric CH sub(4). Due to their complex biogeochemical controls and high spatial and temporal variability, current net CH sub(4) emissions and gross CH sub(4) processes have been difficult to quantify, and their predicted responses to climate change remain uncertain. We investigated CH sub(4) production, oxidation, and surface emissions in Arctic polygon tundra, across a wet-to-dry permafrost degradation gradient from low-centered (intact) to flat- and high-centered (degraded) polygons. From 3 microtopographic positions (polygon centers, rims, and troughs) along the permafrost degradation gradient, we measured surface CH sub(4) and CO sub(2) fluxes, concentrations and stable isotope compositions of CH sub(4) and DIC at three depths in the soil, and soil moisture and temperature. More degraded sites had lower CH sub(4) emissions, a different primary methanogenic pathway, and greater CH sub(4) oxidation than did intact permafrost sites, to a greater degree than soil moisture or temperature could explain. Surface CH sub(4) flux decreased from 64 nmol m super(-2) s super(-1) in intact polygons to 7 nmol m super(-2) s super(-1) in degraded polygons, and stable isotope signatures of CH sub(4) and DIC showed that acetate cleavage dominated CH sub(4) production in low-centered polygons, while CO sub(2) reduction was the primary pathway in degraded polygons. We see evidence that differences in water flow and vegetation between intact and degraded polygons contributed to these observations. In contrast to many previous studies, these findings document a mechanism whereby permafrost degradation can lead to local decreases in tundra CH sub(4) emissions. JF - Global Change Biology AU - Vaughn, Lydia JS AU - Conrad, Mark E AU - Bill, Markus AU - Torn, Margaret S AD - Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA. Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 3487 EP - 3502 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 22 IS - 10 SN - 1354-1013, 1354-1013 KW - ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Ecology Abstracts KW - Isotopes KW - Degradation KW - Dissolved inorganic carbon KW - Climatic changes KW - Soil temperature KW - Permafrost KW - Soil Water KW - Tundra KW - Soils KW - Wetlands KW - Methane KW - Water flow KW - Biogeochemistry KW - Temporal variations KW - Temperature KW - Vegetation KW - Acetic acid KW - Stream flow KW - PN, Arctic KW - Stable Isotopes KW - Disseminated intravascular coagulation KW - Oxidation KW - Moisture Content KW - Soil moisture KW - Carbon dioxide KW - Carbon Dioxide KW - SW 0810:General KW - D 04040:Ecosystem and Ecology Studies KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819142058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+Change+Biology&rft.atitle=Isotopic+insights+into+methane+production%2C+oxidation%2C+and+emissions+in+Arctic+polygon+tundra&rft.au=Vaughn%2C+Lydia+JS%3BConrad%2C+Mark+E%3BBill%2C+Markus%3BTorn%2C+Margaret+S&rft.aulast=Vaughn&rft.aufirst=Lydia&rft.date=2016-10-01&rft.volume=22&rft.issue=10&rft.spage=3487&rft.isbn=&rft.btitle=&rft.title=Global+Change+Biology&rft.issn=13541013&rft_id=info:doi/10.1111%2Fgcb.13281 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-09-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Methane; Temporal variations; Biogeochemistry; Dissolved inorganic carbon; Soils; Permafrost; Wetlands; Carbon dioxide; Stream flow; Isotopes; Water flow; Climatic changes; Soil temperature; Vegetation; Acetic acid; Disseminated intravascular coagulation; Tundra; Oxidation; Soil moisture; Stable Isotopes; Degradation; Temperature; Moisture Content; Soil Water; Carbon Dioxide; PN, Arctic DO - http://dx.doi.org/10.1111/gcb.13281 ER - TY - JOUR T1 - Statistical analysis of support thickness and particle size effects in HRTEM imaging of metal nanoparticles. AN - 1816864206; 27421079 AB - High-resolution transmission electron microscopy (HRTEM) examination of nanoparticles requires their placement on some manner of support - either TEM grid membranes or part of the material itself, as in many heterogeneous catalyst systems - but a systematic quantification of the practical imaging limits of this approach has been lacking. Here we address this issue through a statistical evaluation of how nanoparticle size and substrate thickness affects the ability to resolve structural features of interest in HRTEM images of metallic nanoparticles on common support membranes. The visibility of lattice fringes from crystalline Au nanoparticles on amorphous carbon and silicon supports of varying thickness was investigated with both conventional and aberration-corrected TEM. Over the 1-4nm nanoparticle size range examined, the probability of successfully resolving lattice fringes differed significantly as a function both of nanoparticle size and support thickness. Statistical analysis was used to formulate guidelines for the selection of supports and to quantify the impact a given support would have on HRTEM imaging of crystalline structure. For nanoparticles ≥1nm, aberration-correction was found to provide limited benefit for the purpose of visualizing lattice fringes; electron dose is more predictive of lattice fringe visibility than aberration correction. These results confirm that the ability to visualize lattice fringes is ultimately dependent on the signal-to-noise ratio of the HRTEM images, rather than the point-to-point resolving power of the microscope. This study provides a benchmark for HRTEM imaging of crystalline supported metal nanoparticles and is extensible to a wide variety of supports and nanostructures. JF - Ultramicroscopy AU - House, Stephen D AU - Bonifacio, Cecile S AU - Grieshaber, Ross V AU - Li, Long AU - Zhang, Zhongfan AU - Ciston, Jim AU - Stach, Eric A AU - Yang, Judith C AD - Chemical and Petroleum Engineering, and Physics, University of Pittsburgh, Pittsburgh, PA 15261, USA. Electronic address: sdh46@pitt.edu. ; Chemical and Petroleum Engineering, and Physics, University of Pittsburgh, Pittsburgh, PA 15261, USA. ; National Center of Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. ; Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA. Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 22 EP - 29 VL - 169 KW - Index Medicus KW - Particle size KW - Image artifacts KW - Cs aberration KW - Nanoparticles KW - HRTEM KW - Support effect UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1816864206?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ultramicroscopy&rft.atitle=Statistical+analysis+of+support+thickness+and+particle+size+effects+in+HRTEM+imaging+of+metal+nanoparticles.&rft.au=House%2C+Stephen+D%3BBonifacio%2C+Cecile+S%3BGrieshaber%2C+Ross+V%3BLi%2C+Long%3BZhang%2C+Zhongfan%3BCiston%2C+Jim%3BStach%2C+Eric+A%3BYang%2C+Judith+C&rft.aulast=House&rft.aufirst=Stephen&rft.date=2016-10-01&rft.volume=169&rft.issue=&rft.spage=22&rft.isbn=&rft.btitle=&rft.title=Ultramicroscopy&rft.issn=1879-2723&rft_id=info:doi/10.1016%2Fj.ultramic.2016.06.007 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-09-04 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1016/j.ultramic.2016.06.007 ER - TY - JOUR T1 - Comparison of carbon dioxide emissions intensity of steel production in China, Germany, Mexico, and the United States AN - 1811885467; PQ0003497704 AB - Production of iron and steel is an energy-intensive manufacturing process. The goal of this study was to develop a methodology for accurately and more fairly comparing the energy-related carbon dioxide (CO2) emissions intensity of steel production in different countries and to demonstrate the application of this methodology in an analysis of the steel industry in China, Germany, Mexico, and the U.S. Our methodology addresses the industry's boundary definition, conversion factors, and industry structure. The results of our analysis show that, for the entire iron and steel production process, the base-case (2010) CO2 emissions intensity was 2148kg CO2/tonne crude steel in China, 1708kg CO2/tonne crude steel in Germany, 1080kg CO2/tonne crude steel in Mexico, and 1736kg CO2/tonne crude steel in the U.S. One of the main reasons that Mexico has the lowest CO2 emissions intensity is Mexico's large share of steel production using electric arc furnaces (EAFs) (69.4%). EAF steel production has lower CO2 emissions intensity than production using blast furnaces/basic oxygen furnaces. China, by contrast, has the smallest share of EAF production among the four countries-9.8% in the base-case year 2010. In one scenario, we applied the Chinese share of EAF production to the other three case-study countries; the result was an increase in CO2 emissions intensity of steel production of 19% (2036kg CO2/tonne crude steel) in Germany, 92% (2074 kgCO2/tonne crude steel) in Mexico, and 56% (2703kg CO2/tonne crude steel) in the U.S. compared to these countries' base-case analyses. In another scenario, we applied the Chinese national average grid electricity CO2 emissions factor from 2010, which is the highest emissions factor among the four countries, to the other three countries. In that scenario, the CO2 emissions intensity of steel production increased by 5% in Germany, 11% in Mexico, and 10% in the U.S. JF - Resources, Conservation and Recycling AU - Hasanbeigi, Ali AU - Arens, Marlene AU - Cardenas, Jose Carlos Rojas AU - Price, Lynn AU - Triolo, Ryan AD - China Energy Group, Energy Analysis and Environmental Impacts Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 127 EP - 139 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 113 SN - 0921-3449, 0921-3449 KW - Sustainability Science Abstracts; Environment Abstracts KW - Carbon dioxide intensity KW - Iron and steel industry KW - Energy intensity KW - Manufacturing industry KW - Metal industry KW - Recycling KW - Waste management KW - Oxygen KW - USA KW - Mexico KW - Furnaces KW - Emissions KW - Conservation KW - China, People's Rep. KW - Steel KW - Germany KW - Carbon dioxide KW - Iron KW - M3 1010:Issues in Sustainable Development KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1811885467?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Resources%2C+Conservation+and+Recycling&rft.atitle=Comparison+of+carbon+dioxide+emissions+intensity+of+steel+production+in+China%2C+Germany%2C+Mexico%2C+and+the+United+States&rft.au=Hasanbeigi%2C+Ali%3BArens%2C+Marlene%3BCardenas%2C+Jose+Carlos+Rojas%3BPrice%2C+Lynn%3BTriolo%2C+Ryan&rft.aulast=Hasanbeigi&rft.aufirst=Ali&rft.date=2016-10-01&rft.volume=8&rft.issue=9&rft.spage=1904&rft.isbn=&rft.btitle=&rft.title=ISME+Journal&rft.issn=17517362&rft_id=info:doi/10.1038%2Fismej.2014.36 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-09-01 N1 - SubjectsTermNotLitGenreText - Oxygen; Manufacturing industry; Furnaces; Emissions; Conservation; Steel; Recycling; Metal industry; Carbon dioxide; Iron; Waste management; USA; Mexico; China, People's Rep.; Germany DO - http://dx.doi.org/10.1016/j.resconrec.2016.06.008 ER - TY - JOUR T1 - Radiocarbon constraints imply reduced carbon uptake by soils during the 21st century AN - 1840618931; 2016-094556 AB - Soil is the largest terrestrial carbon reservoir and may influence the sign and magnitude of carbon cycle-climate feedbacks. Many Earth system models (ESMs) estimate a significant soil carbon sink by 2100, yet the underlying carbon dynamics determining this response have not been systematically tested against observations. We used (super 14) C data from 157 globally distributed soil profiles sampled to 1-meter depth to show that ESMs underestimated the mean age of soil carbon by a factor of more than six (430 + or - 50 years versus 3100 + or - 1800 years). Consequently, ESMs overestimated the carbon sequestration potential of soils by a factor of nearly two (40 + or - 27%). These inconsistencies suggest that ESMs must better represent carbon stabilization processes and the turnover time of slow and passive reservoirs when simulating future atmospheric carbon dioxide dynamics. JF - Science AU - He, Yujie AU - Trumbore, Susan E AU - Torn, Margaret S AU - Harden, Jennifer W AU - Vaughn, Lydia J S AU - Allison, Steven D AU - Randerson, James T Y1 - 2016/09/23/ PY - 2016 DA - 2016 Sep 23 SP - 1419 EP - 1424 PB - American Association for the Advancement of Science, Washington, DC VL - 353 IS - 6306 SN - 0036-8075, 0036-8075 KW - soils KW - soil profiles KW - isotopes KW - sinks KW - prediction KW - atmosphere KW - stable isotopes KW - C-14/C-12 KW - geochemical cycle KW - carbon dioxide KW - models KW - radioactive isotopes KW - dynamics KW - carbon KW - carbon cycle KW - C-14 KW - organic carbon KW - geochemistry KW - 02D:Isotope geochemistry KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840618931?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Radiocarbon+constraints+imply+reduced+carbon+uptake+by+soils+during+the+21st+century&rft.au=He%2C+Yujie%3BTrumbore%2C+Susan+E%3BTorn%2C+Margaret+S%3BHarden%2C+Jennifer+W%3BVaughn%2C+Lydia+J+S%3BAllison%2C+Steven+D%3BRanderson%2C+James+T&rft.aulast=He&rft.aufirst=Yujie&rft.date=2016-09-23&rft.volume=353&rft.issue=6306&rft.spage=1419&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.aad4273 L2 - http://www.sciencemag.org/magazine LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 36 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2016-11-17 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - atmosphere; C-14; C-14/C-12; carbon; carbon cycle; carbon dioxide; dynamics; geochemical cycle; geochemistry; isotopes; models; organic carbon; prediction; radioactive isotopes; sinks; soil profiles; soils; stable isotopes DO - http://dx.doi.org/10.1126/science.aad4273 ER - TY - JOUR T1 - Emissions from Electronic Cigarettes: Key Parameters Affecting the Release of Harmful Chemicals. AN - 1817560728; 27461870 AB - Use of electronic cigarettes has grown exponentially over the past few years, raising concerns about harmful emissions. This study quantified potentially toxic compounds in the vapor and identified key parameters affecting emissions. Six principal constituents in three different refill "e-liquids" were propylene glycol (PG), glycerin, nicotine, ethanol, acetol, and propylene oxide. The latter, with mass concentrations of 0.4-0.6%, is a possible carcinogen and respiratory irritant. Aerosols generated with vaporizers contained up to 31 compounds, including nicotine, nicotyrine, formaldehyde, acetaldehyde, glycidol, acrolein, acetol, and diacetyl. Glycidol is a probable carcinogen not previously identified in the vapor, and acrolein is a powerful irritant. Emission rates ranged from tens to thousands of nanograms of toxicants per milligram of e-liquid vaporized, and they were significantly higher for a single-coil vs a double-coil vaporizer (by up to an order of magnitude for aldehydes). By increasing the voltage applied to a single-coil device from 3.3 to 4.8 V, the mass of e-liquid consumed doubled from 3.7 to 7.5 mg puff(-1) and the total aldehyde emission rates tripled from 53 to 165 μg puff(-1), with acrolein rates growing by a factor of 10. Aldehyde emissions increased by more than 60% after the device was reused several times, likely due to the buildup of polymerization byproducts that degraded upon heating. These findings suggest that thermal degradation byproducts are formed during vapor generation. Glycidol and acrolein were primarily produced by glycerin degradation. Acetol and 2-propen-1-ol were produced mostly from PG, while other compounds (e.g., formaldehyde) originated from both. Because emissions originate from reaction of the most common e-liquid constituents (solvents), harmful emissions are expected to be ubiquitous when e-cigarette vapor is present. JF - Environmental science & technology AU - Sleiman, Mohamad AU - Logue, Jennifer M AU - Montesinos, V Nahuel AU - Russell, Marion L AU - Litter, Marta I AU - Gundel, Lara A AU - Destaillats, Hugo AD - Indoor Environment Group, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, MS70-108B, Berkeley, California 94720, United States. ; División Química de la Remediación Ambiental, CNEA-CONICET , Avenida Gral. Paz, (1650) San Martín, Buenos Aires, Argentina. Y1 - 2016/09/06/ PY - 2016 DA - 2016 Sep 06 SP - 9644 EP - 9651 VL - 50 IS - 17 KW - Index Medicus UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1817560728?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Emissions+from+Electronic+Cigarettes%3A+Key+Parameters+Affecting+the+Release+of+Harmful+Chemicals.&rft.au=Sleiman%2C+Mohamad%3BLogue%2C+Jennifer+M%3BMontesinos%2C+V+Nahuel%3BRussell%2C+Marion+L%3BLitter%2C+Marta+I%3BGundel%2C+Lara+A%3BDestaillats%2C+Hugo&rft.aulast=Sleiman&rft.aufirst=Mohamad&rft.date=2016-09-06&rft.volume=50&rft.issue=17&rft.spage=9644&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=1520-5851&rft_id=info:doi/10.1021%2Facs.est.6b01741 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-09-06 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1021/acs.est.6b01741 ER - TY - JOUR T1 - Effects of pore-scale precipitation on permeability and flow AN - 1861108066; 787270-11 AB - The effects of calcite precipitation on porous media permeability and flow were evaluated with a combined experimental and modeling approach. X-ray microtomography images of two columns packed with glass beads and calcite (spar crystals) or aragonite (Bahamas ooids) injected with a supersaturated solution (log Omega = 1.42) were processed in order to calculate rates of calcite precipitation with a spatial resolution of 4.46 mu m. Identification and localization of the newly precipitated crystals on the 3D images was performed and results used to calculate the crystal growth rates and velocities. The effects of carbonate precipitation were also evaluated in terms of the integrated precipitation rate over the length of the column, crystal shape, surface area and pore roughness changes. While growth was epitaxial on calcite spar, calcite rhombohedra formed on glass beads and clusters of polyhedrons formed on aragonite ooids. Near the column inlet, calcite precipitation occurred preferentially on carbonate grains compared to glass beads, with almost 100% of calcite spar surface area covered by new crystals versus 92% in the case of aragonite and 11% in the case of glass beads. Although the experimental chemistry and flow boundary conditions in the two columns were similar, their porosity-permeability evolution was different because the nucleation and subsequent crystal growth on the two substrates (i.e., calcite spar and aragonite ooids) was very different. The impact of mineral precipitation on pore-scale flow and permeability was evaluated using a pore-scale Stokes solver that accounted for the changes in pore geometry. For similar magnitude reductions in porosity, the decrease in permeability was highest within the sample that experienced the greatest increase in pore roughness. Various porous media models were generated to show the impact of different crystal growth patterns and pore roughness changes on flow and permeability-porosity relationship. Under constant flow rate boundary conditions, precipitation resulted in an increase in both the average and maximum velocities. Increases in pore roughness led to a more heterogeneous flow field, principally through the effects on the fastest and slowest velocities within the domain. JF - Advances in Water Resources AU - Noiriel, Catherine AU - Steefel, Carl I AU - Yang, Li AU - Bernard, Dominique Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 125 EP - 137 PB - Elsevier, Oxford VL - 95 SN - 0309-1708, 0309-1708 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861108066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Effects+of+pore-scale+precipitation+on+permeability+and+flow&rft.au=Noiriel%2C+Catherine%3BSteefel%2C+Carl+I%3BYang%2C+Li%3BBernard%2C+Dominique&rft.aulast=Noiriel&rft.aufirst=Catherine&rft.date=2016-09-01&rft.volume=95&rft.issue=&rft.spage=125&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/10.1016%2Fj.advwatres.2015.11.013 L2 - http://www.sciencedirect.com/science/journal/03091708 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Last updated - 2017-01-24 DO - http://dx.doi.org/10.1016/j.advwatres.2015.11.013 ER - TY - JOUR T1 - Impact of the linked surface water-soil water-groundwater system on transport of E. coli in the subsurface AN - 1861097394; 783634-59 AB - Escherichia coli (E. coli) contamination of groundwater (GW) and surface water (SW) occurs significantly through the subsurface from onsite wastewater treatment systems (OWTSs). However, E. coli transport in the subsurface remains inadequately characterized at the field scale, especially within the vadose zone. Therefore, the aim of this research is to investigate the impact of groundwater fluctuations (e.g., recharging, discharging conditions) and variable conditions in the vadose zone (e.g., pulses of E. coli flux) by characterizing E. coli fate and transport in a linked surface water-soil water-groundwater system (SW-SoW-GW). In particular, this study characterizes the impact of flow regimes on E. coli transport in the subsurface and evaluates the sensitivity of parameters that control the transport of E. coli in the SW-SoW-GW system. This study was conducted in Lake Granbury, which is an important water supply in north-central Texas providing water for over 250,000 people. Results showed that there was less removal of E. coli during groundwater recharge events as compared to GW discharge events. Also, groundwater and surface water systems largely control E. coli transport in the subsurface; however, temporal variability of E. coli can be explained by linking the SW-SoW-GW system. Moreover, sensitivity analysis revealed that saturated water content of the soil, total retention rate coefficient, and hydraulic conductivity are important parameters for E. coli transport in the subsurface. Copyright 2016 Springer International Publishing Switzerland JF - Water, Air and Soil Pollution AU - Dwivedi, Dipankar AU - Mohanty, Binayak P AU - Lesikar, Bruce J Y1 - 2016/09// PY - 2016 DA - September 2016 EP - Article 351 PB - Springer, Dordrecht VL - 227 IS - 9 SN - 0049-6979, 0049-6979 KW - United States KW - aquifer vulnerability KW - waste water KW - unsaturated zone KW - environmental analysis KW - ground water KW - transport KW - water treatment KW - Escherichia coli KW - coliform bacteria KW - Escherichia KW - discharge KW - septic systems KW - surface water KW - pollution KW - Texas KW - aquifers KW - water table KW - fluctuations KW - recharge KW - Hood County Texas KW - bacteria KW - Lake Granbury KW - seasonal variations KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861097394?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water%2C+Air+and+Soil+Pollution&rft.atitle=Impact+of+the+linked+surface+water-soil+water-groundwater+system+on+transport+of+E.+coli+in+the+subsurface&rft.au=Dwivedi%2C+Dipankar%3BMohanty%2C+Binayak+P%3BLesikar%2C+Bruce+J&rft.aulast=Dwivedi&rft.aufirst=Dipankar&rft.date=2016-09-01&rft.volume=227&rft.issue=9&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water%2C+Air+and+Soil+Pollution&rft.issn=00496979&rft_id=info:doi/10.1007%2Fs11270-016-3053-2 L2 - http://www.springerlink.com/(hi4cjunvnzs4hnradzi0ib55)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100344,1 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Number of references - 74 N1 - Document feature - illus. N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2017-01-24 N1 - CODEN - WAPLAC N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; bacteria; coliform bacteria; discharge; environmental analysis; Escherichia; Escherichia coli; fluctuations; ground water; Hood County Texas; Lake Granbury; pollution; recharge; seasonal variations; septic systems; surface water; Texas; transport; United States; unsaturated zone; waste water; water table; water treatment DO - http://dx.doi.org/10.1007/s11270-016-3053-2 ER - TY - JOUR T1 - Arsenic mobilization in an oxidizing alkaline ground water; experimental studies, comparison and optimization of geochemical modeling parameters AN - 1840620292; 2016-094308 AB - Arsenic (As) mobilization and contamination of groundwater affects millions of people worldwide. Progress in developing effective in-situ remediation schemes requires the incorporation of data from laboratory experiments and field samples into calibrated geochemical models.In an oxidizing aquifer where leaching of high pH industrial waste from unlined surface impoundments led to mobilization of naturally occurring As up to 2 mg L (super -1) , sequential extractions of solid phase As as well as, batch sediment microcosm experiments were conducted to understand As partitioning and solid-phase sorptive and buffering capacity. These data were combined with field data to create a series of geochemical models of the system with modeling programs PHREEQC and FITEQL. Different surface complexation modeling approaches, including component additivity (CA), generalized composite (GC), and a hybrid method were developed, compared and fitted to data from batch acidification experiments to simulate potential remediation scenarios. Several parameters strongly influence the concentration of dissolved As including pH, presence of competing ions (particularly phosphate) and the number of available sorption sites on the aquifer solids. Lowering the pH of groundwater to 7 was found to have a variable, but limited impact (<63%) on decreasing the concentration of dissolved As. The models indicate that in addition to lowering pH, decreasing the concentration of dissolved phosphate and/or increasing the number of available sorption sites could significantly decrease the As solubility to levels below 10 mu g L (super -1) . The hybrid and GC modeling results fit the experimental data well (NRMSE<10%) with reasonable effort and can be implemented in further studies for validation. JF - Applied Geochemistry AU - Hafeznezami, Saeedreza AU - Lam, Jacquelyn R AU - Yang, Xiang AU - Reynolds, Matthew D AU - Davis, James A AU - Lin, Tiffany AU - Jay, Jennifer A Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 97 EP - 112 PB - Elsevier, Oxford-New York-Beijing VL - 72 SN - 0883-2927, 0883-2927 KW - United States KW - complexing KW - simulation KW - reservoir rocks KW - remediation KW - ground water KW - sampling KW - sequential extraction KW - sediments KW - New England KW - natural attenuation KW - spectra KW - water pollution KW - pH KW - Eh KW - PHREEQC KW - experimental studies KW - titration KW - pollutants KW - oxidation KW - arsenic KW - pollution KW - optimization KW - adsorption KW - atomic absorption spectra KW - alkalic composition KW - models KW - case studies KW - metals KW - FITEQL model KW - acidification KW - mobilization KW - waste disposal KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840620292?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Rock+Mechanics+and+Mining+Sciences&rft.atitle=Three-point+bending+test+investigation+of+the+fracture+behavior+of+siltstone+after+thermal+treatment&rft.au=Zuo%2C+Jian-ping%3BXie%2C+He-ping%3BDai%2C+Feng%3BJu%2C+Yang&rft.aulast=Zuo&rft.aufirst=Jian-ping&rft.date=2014-09-01&rft.volume=70&rft.issue=&rft.spage=133&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Rock+Mechanics+and+Mining+Sciences&rft.issn=13651609&rft_id=info:doi/10.1016%2Fj.ijrmms.2014.04.005 L2 - http://www.sciencedirect.com/science/journal/08832927 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 76 N1 - Document feature - illus. incl. 9 tables, sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - acidification; adsorption; alkalic composition; arsenic; atomic absorption spectra; case studies; complexing; Eh; experimental studies; FITEQL model; ground water; metals; mobilization; models; natural attenuation; New England; optimization; oxidation; pH; PHREEQC; pollutants; pollution; remediation; reservoir rocks; sampling; sediments; sequential extraction; simulation; spectra; titration; United States; waste disposal; water pollution DO - http://dx.doi.org/10.1016/j.apgeochem.2016.07.011 ER - TY - JOUR T1 - On-resin N-terminal peptoid degradation: Toward mild sequencing conditions AN - 1827888703; PQ0003703736 AB - A novel approach to sequentially degrade peptoid N-terminal N-(substituted)glycine residues on the solid-phase using very mild conditions is reported. This method relies on the treatment of resin-bound, bromoacetylated peptoids with silver perchlorate in THF, leading to an intramolecular cyclization reaction to liberate the terminal residue as a N-substituted morpholine-2,5-dione, resulting in a truncated peptoid upon hydrolysis and a silver bromide byproduct. Side-chain functional group tolerance is explored and reaction kinetics are determined. In a series of pentapeptoids possessing variable, non-nucleophilic side-chains at the second position (R super(2)), we demonstrate that sequential N-terminal degradation of the first two residues proceeds in 87% and 74% conversions on average, respectively. We further demonstrate that the degradation reaction is selective for peptoids, and represents substantial progress toward a mild, iterative sequencing method for peptoid oligomers. Biopolymers (Pept Sci) 106: 726-736, 2016. JF - Biopolymers AU - Proulx, Caroline AU - Noee, Falko AU - Yoo, Stan AU - Connolly, Michael D AU - Zuckermann, Ronald N AD - Lawrence Berkeley National Laboratory, The Molecular Foundry, 1 Cyclotron Road, Berkeley, California, 94720. Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 726 EP - 736 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 106 IS - 5 SN - 0006-3525, 0006-3525 KW - Biotechnology and Bioengineering Abstracts KW - Kinetics KW - Biopolymers KW - Perchloric acid KW - bromides KW - Silver KW - Hydrolysis KW - W 30935:Food Biotechnology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1827888703?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biopolymers&rft.atitle=On-resin+N-terminal+peptoid+degradation%3A+Toward+mild+sequencing+conditions&rft.au=Proulx%2C+Caroline%3BNoee%2C+Falko%3BYoo%2C+Stan%3BConnolly%2C+Michael+D%3BZuckermann%2C+Ronald+N&rft.aulast=Proulx&rft.aufirst=Caroline&rft.date=2016-09-01&rft.volume=106&rft.issue=5&rft.spage=726&rft.isbn=&rft.btitle=&rft.title=Biopolymers&rft.issn=00063525&rft_id=info:doi/10.1002%2Fbip.22884 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-10-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Kinetics; Biopolymers; Perchloric acid; bromides; Hydrolysis; Silver DO - http://dx.doi.org/10.1002/bip.22884 ER - TY - JOUR T1 - Impact of engineered lignin composition on biomass recalcitrance and ionic liquid pretreatment efficiency AN - 1827887099; PQ0003684398 AB - Lignin plays important biological functions in plant cell walls, but also contributes to the recalcitrance of the walls to deconstruction. In recent years, genetic modification of lignin biosynthesis pathways has become one of the primary targets of plant cell wall engineering. In this study, we used a combination of approaches to characterize the structural and compositional features of wild-type Arabidopsis and mutants with distinct lignin monomer compositions: fah1-2 (Guaiacyl, G-lignin dominant), C4H-F5H (Syringyl, S-lignin dominant), COMT1 (G/5-hydroxy G-lignin dominant), and a newly developed med5a med5b ref8 (p-hydroxyphenyl, H-lignin dominant) mutant. In order to understand how lignin modification affects biomass recalcitrance, substrate reactivity and lignin fractionation, we correlated these properties with saccharification efficiency after ionic liquid (IL) pretreatment. Results showed that the cleavage of beta -O-4 linkages in the H- or S-lignin mutants was greater than that in G-lignin mutants. Furthermore, density functional theory (DFT) based calculations indicate higher chemical reactivity of the linkages between H- and S-lignin monomers, a possible cause of the reduced recalcitrance of H- or S-lignin mutants. Glycome profiling was conducted to study the impact of lignin modification on overall composition, extractability, integrity and lignin-associated features of most major non-cellulosic cell wall glycans in these mutants. This study provides insights into the role of lignin monomer composition on the enzymatic digestibility of biomass and the effect of lignin modification on overall wall structure and biomass pretreatment performance. JF - Green Chemistry AU - Shi, Jian AU - Pattathil, Sivakumar AU - Parthasarathi, Ramakrishnan AU - Anderson, Nickolas A AU - Kim, Jeong Im AU - Venketachalam, Sivasankari AU - Hahn, Michael G AU - Chapple, Clint AU - Simmons, Blake A AU - Singh, Seema AD - Deconstruction Division; Joint BioEnergy Institute; 5885 Hollis St; Emeryville; CA 94608; USA; +1 510-486-4252; +1 925-294-4551 Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 4884 EP - 4895 PB - Royal Society of Chemistry, c/o Springer-Verlag New York Inc. Secaucus New Jersey 07096 2485 United States VL - 18 IS - 18 SN - 1463-9262, 1463-9262 KW - Sustainability Science Abstracts KW - Biosynthesis KW - Fractionation KW - Chemical reactions KW - Green development KW - Arabidopsis KW - Biomass KW - Mutants KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1827887099?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Green+Chemistry&rft.atitle=Impact+of+engineered+lignin+composition+on+biomass+recalcitrance+and+ionic+liquid+pretreatment+efficiency&rft.au=Shi%2C+Jian%3BPattathil%2C+Sivakumar%3BParthasarathi%2C+Ramakrishnan%3BAnderson%2C+Nickolas+A%3BKim%2C+Jeong+Im%3BVenketachalam%2C+Sivasankari%3BHahn%2C+Michael+G%3BChapple%2C+Clint%3BSimmons%2C+Blake+A%3BSingh%2C+Seema&rft.aulast=Shi&rft.aufirst=Jian&rft.date=2016-09-01&rft.volume=18&rft.issue=18&rft.spage=4884&rft.isbn=&rft.btitle=&rft.title=Green+Chemistry&rft.issn=14639262&rft_id=info:doi/10.1039%2Fc6gc01193d LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-10-01 N1 - Number of references - 48 N1 - Last updated - 2016-10-26 N1 - SubjectsTermNotLitGenreText - Biosynthesis; Fractionation; Chemical reactions; Green development; Biomass; Mutants; Arabidopsis DO - http://dx.doi.org/10.1039/c6gc01193d ER - TY - JOUR T1 - The Northwest Geysers EGS demonstration project, California; Part 2, Modeling and interpretation AN - 1824213305; 2016-083419 AB - In this paper, we summarize the results of coupled thermal, hydraulic, and mechanical (THM) modeling in support of the Northwest Geysers EGS Demonstration Project, which aims at enhancing production from a known High Temperature Reservoir (HTR) (280-400 degrees C) located under the conventional (240 degrees C) geothermal steam reservoir. The THM modeling was conducted to investigate geomechanical effects of cold-water injection during the stimulation of the EGS, first to predict the extent of the stimulation zone for a given injection schedule, and then to conduct interpretive analyses of the actual stimulation. By using a calibrated THM model based on historic injection and microseismic data at a nearby well, we could reasonably predict the extent of the stimulation zone around the injection well, at least for the first few months of injection. However, observed microseismic evolution and pressure responses over the one-year stimulation-injection revealed more heterogeneous behavior as a result of more complex geology, including a network of shear zones. Therefore, for an interpretive analysis of the one-year stimulation campaign, we included two sets of vertical shear zones within the model; a set of more permeable NW-striking shear zones and a set of less permeable NE-striking shear zones. Our modeling indicates that the microseismic events in this system are related to shear reactivation of pre-existing fractures, triggered by the combined effects of injection-induced cooling around the injection well and rapid (but small) changes in steam pressure as far as a kilometer from the injection well. Overall, the integrated monitoring and modeling of microseismicity, ground surface deformations, reservoir pressure, fluid chemical composition, and seismic tomography depict an EGS system hydraulically bounded by some of the NE-striking low permeability shear zones, with the more permeable NW-striking shear zone providing liquid flow paths for stimulation deep (several kilometers) down into the HTR. The modeling indicates that a significant mechanical degradation (damage) inferred from seismic tomography, and potential changes in fracture porosity inferred from cross-well pressure responses, are related to shear rupture in the stimulation zone driven by both pressure and cooling effects. JF - Geothermics AU - Rutqvist, Jonny AU - Jeanne, Pierre AU - Dobson, Patrick F AU - Garcia, Julio AU - Hartline, Craig AU - Hutchings, Lawrence AU - Singh, Ankit AU - Vasco, Donald W AU - Walters, Mark Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 120 EP - 138 PB - Elsevier, Oxford-New York VL - 63 SN - 0375-6505, 0375-6505 KW - United States KW - shear zones KW - well stimulation KW - mathematical models KW - geothermal engineering KW - enhanced recovery KW - thermal waters KW - temperature KW - geothermal energy KW - California KW - geothermal fields KW - fluid injection KW - The Geysers KW - geothermal exploration KW - microseisms KW - Northwest Geysers KW - thermomechanical properties KW - reservoir properties KW - drilling KW - high temperature KW - faults KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824213305?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geothermics&rft.atitle=The+Northwest+Geysers+EGS+demonstration+project%2C+California%3B+Part+2%2C+Modeling+and+interpretation&rft.au=Rutqvist%2C+Jonny%3BJeanne%2C+Pierre%3BDobson%2C+Patrick+F%3BGarcia%2C+Julio%3BHartline%2C+Craig%3BHutchings%2C+Lawrence%3BSingh%2C+Ankit%3BVasco%2C+Donald+W%3BWalters%2C+Mark&rft.aulast=Rutqvist&rft.aufirst=Jonny&rft.date=2016-09-01&rft.volume=63&rft.issue=&rft.spage=120&rft.isbn=&rft.btitle=&rft.title=Geothermics&rft.issn=03756505&rft_id=info:doi/10.1016%2Fj.geothermics.2015.08.002 L2 - http://www.sciencedirect.com/science/journal/03756505 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 47 N1 - Document feature - illus. incl. 1 table, sect. N1 - Last updated - 2016-09-29 N1 - CODEN - GTMCAT N1 - SubjectsTermNotLitGenreText - California; drilling; enhanced recovery; faults; fluid injection; geothermal energy; geothermal engineering; geothermal exploration; geothermal fields; high temperature; mathematical models; microseisms; Northwest Geysers; reservoir properties; shear zones; temperature; The Geysers; thermal waters; thermomechanical properties; United States; well stimulation DO - http://dx.doi.org/10.1016/j.geothermics.2015.08.002 ER - TY - JOUR T1 - The Northwest Geysers EGS demonstration project, California; Part 1, Characterization and reservoir response to injection AN - 1824213280; 2016-083418 AB - An Enhanced Geothermal System (EGS) Demonstration Project is currently underway in the Northwest Geysers. The project goal is to demonstrate the feasibility of stimulating a deep high-temperature reservoir (HTR) (up to 400 degrees C, 750 degrees F). Two previously abandoned wells, Prati State 31 (PS-31) and Prati 32 (P-32), were reopened and deepened to be used as an injection and production doublet to stimulate the HTR. The deepened portions of both wells have conductive temperature gradients of 10 degrees F/100 ft (182 degrees C/km), produce connate native fluids and magmatic gas, and the rocks were isotopically unexchanged by meteoric water. The ambient temperature meteoric water injected into these hot dry rocks has evidently created a permeability volume of several cubic kilometers as determined by seismic monitoring. Preliminary isotopic analyses of the injected and produced water indicate that 50-75% of the steam from the created EGS reservoir is injection-derived. JF - Geothermics AU - Garcia, Julio AU - Hartline, Craig AU - Walters, Mark AU - Wright, Melinda AU - Rutqvist, Jonny AU - Dobson, Patrick F AU - Jeanne, Pierre Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 97 EP - 119 PB - Elsevier, Oxford-New York VL - 63 SN - 0375-6505, 0375-6505 KW - United States KW - well stimulation KW - subduction zones KW - geothermal wells KW - well-logging KW - geothermal engineering KW - enhanced recovery KW - hot dry rocks KW - temperature KW - geothermal energy KW - California KW - geothermal fields KW - The Geysers KW - San Andreas Fault KW - microseisms KW - Northwest Geysers KW - reservoir properties KW - induced earthquakes KW - earthquakes KW - high temperature KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824213280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geothermics&rft.atitle=The+Northwest+Geysers+EGS+demonstration+project%2C+California%3B+Part+1%2C+Characterization+and+reservoir+response+to+injection&rft.au=Garcia%2C+Julio%3BHartline%2C+Craig%3BWalters%2C+Mark%3BWright%2C+Melinda%3BRutqvist%2C+Jonny%3BDobson%2C+Patrick+F%3BJeanne%2C+Pierre&rft.aulast=Garcia&rft.aufirst=Julio&rft.date=2016-09-01&rft.volume=63&rft.issue=&rft.spage=97&rft.isbn=&rft.btitle=&rft.title=Geothermics&rft.issn=03756505&rft_id=info:doi/10.1016%2Fj.geothermics.2015.08.003 L2 - http://www.sciencedirect.com/science/journal/03756505 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. 1 table, sects., geol. sketch maps N1 - Last updated - 2016-09-29 N1 - CODEN - GTMCAT N1 - SubjectsTermNotLitGenreText - California; earthquakes; enhanced recovery; geothermal energy; geothermal engineering; geothermal fields; geothermal wells; high temperature; hot dry rocks; induced earthquakes; microseisms; Northwest Geysers; reservoir properties; San Andreas Fault; subduction zones; temperature; The Geysers; United States; well stimulation; well-logging DO - http://dx.doi.org/10.1016/j.geothermics.2015.08.003 ER - TY - JOUR T1 - Conceptual model and numerical analysis of the Desert Peak EGS project; reservoir response to the shallow medium flow-rate hydraulic stimulation phase AN - 1824213111; 2016-083420 AB - A series of stimulation treatments were performed as part of the Engineered Geothermal System (EGS) experiment in the shallow open-hole section of Desert Peak well 27-15 (September 2010-November 2012). These injections at variable wellhead pressures, both below and above the magnitude of the least horizontal principal stress (S (sub hmin) ), produced injectivity gains consistent with hydraulically induced mechanical shear and tensile failure in the surrounding rock. A conceptual framework for the overall Desert Peak EGS experiment is developed and tested based on a synthesis of available structural and geological data. These data include down-hole fracture attributes, in situ stress conditions, pressure interference tests, geochemical tracer studies, and observed induced seismicity. Induced seismicity plays a key role in identifying the geometry of large-scale geological structures that could potentially serve as preferential flow paths during some of the stimulation phases. The numerical code FLAC3D is implemented to simulate the reservoir response to hydraulic stimulation and to investigate in situ conditions conducive to both tensile and shear failure. Results from the numerical analysis show that conditions for shear failure could have occurred along fractures associated with a large northeast-trending normal fault structure located approximately 400 m below the injection interval which coincides with the locations of most of the observed micro-seismicity. This structure may also provide a hydrologic connection between EGS well 27-15 and injection/production wells further to the south-southwest. JF - Geothermics AU - Benato, Stefano AU - Hickman, Stephen AU - Davatzes, Nicholas C AU - Taron, Joshua AU - Spielman, Paul AU - Elsworth, Derek AU - Majer, Ernest L AU - Boyle, Katie Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 139 EP - 156 PB - Elsevier, Oxford-New York VL - 63 SN - 0375-6505, 0375-6505 KW - United States KW - hydraulic fracturing KW - monitoring KW - well stimulation KW - numerical models KW - geothermal wells KW - mechanical properties KW - geothermal engineering KW - enhanced recovery KW - tensile strength KW - Lyon County Nevada KW - porosity KW - geothermal energy KW - geothermal fields KW - fluid injection KW - seismicity KW - reservoir properties KW - Northern Hot Springs Mountains KW - Desert Peak Field KW - induced earthquakes KW - earthquakes KW - permeability KW - Nevada KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824213111?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geothermics&rft.atitle=Conceptual+model+and+numerical+analysis+of+the+Desert+Peak+EGS+project%3B+reservoir+response+to+the+shallow+medium+flow-rate+hydraulic+stimulation+phase&rft.au=Benato%2C+Stefano%3BHickman%2C+Stephen%3BDavatzes%2C+Nicholas+C%3BTaron%2C+Joshua%3BSpielman%2C+Paul%3BElsworth%2C+Derek%3BMajer%2C+Ernest+L%3BBoyle%2C+Katie&rft.aulast=Benato&rft.aufirst=Stefano&rft.date=2016-09-01&rft.volume=63&rft.issue=&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Geothermics&rft.issn=03756505&rft_id=info:doi/10.1016%2Fj.geothermics.2015.06.008 L2 - http://www.sciencedirect.com/science/journal/03756505 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-09-29 N1 - CODEN - GTMCAT N1 - SubjectsTermNotLitGenreText - Desert Peak Field; earthquakes; enhanced recovery; fluid injection; geothermal energy; geothermal engineering; geothermal fields; geothermal wells; hydraulic fracturing; induced earthquakes; Lyon County Nevada; mechanical properties; monitoring; Nevada; Northern Hot Springs Mountains; numerical models; permeability; porosity; reservoir properties; seismicity; tensile strength; United States; well stimulation DO - http://dx.doi.org/10.1016/j.geothermics.2015.06.008 ER - TY - JOUR T1 - Enhanced geothermal systems; state of the art AN - 1824213102; 2016-083410 JF - Geothermics Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 252 PB - Elsevier, Oxford-New York VL - 63 SN - 0375-6505, 0375-6505 KW - geothermal energy KW - geothermal exploration KW - structural traps KW - traps KW - reservoir properties KW - geothermal engineering KW - enhanced recovery KW - high temperature KW - crust KW - thermal waters KW - temperature KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824213102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Nickel+partitioning+in+biogenic+and+abiogenic+ferrihydrite%3B+the+influence+of+silica+and+implications+for+ancient+environments&rft.au=Eickhoff%2C+Merle%3BObst%2C+Martin%3BSchroeder%2C+Christian%3BHitchcock%2C+Adam+P%3BTyliszczak%2C+Tolek%3BMartinez%2C+Raul+E%3BRobbins%2C+Leslie+J%3BKonhauser%2C+Kurt+O%3BKappler%2C+Andreas&rft.aulast=Eickhoff&rft.aufirst=Merle&rft.date=2014-09-01&rft.volume=140&rft.issue=&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2014.05.021 L2 - http://www.sciencedirect.com/science/journal/03756505 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Document feature - illus. N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2016-09-29 N1 - CODEN - GTMCAT N1 - SubjectsTermNotLitGenreText - crust; enhanced recovery; geothermal energy; geothermal engineering; geothermal exploration; high temperature; reservoir properties; structural traps; temperature; thermal waters; traps ER - TY - JOUR T1 - Metatranscriptomic evidence of pervasive and diverse chemolithoautotrophy relevant to C, S, N and Fe cycling in a shallow alluvial aquifer AN - 1815705202; PQ0003588424 AB - Groundwater ecosystems are conventionally thought to be fueled by surface-derived allochthonous organic matter and dominated by heterotrophic microbes living under often-oligotrophic conditions. However, in a 2-month study of nitrate amendment to a perennially suboxic aquifer in Rifle (CO), strain-resolved metatranscriptomic analysis revealed pervasive and diverse chemolithoautotrophic bacterial activity relevant to C, S, N and Fe cycling. Before nitrate injection, anaerobic ammonia-oxidizing (anammox) bacteria accounted for 16% of overall microbial community gene expression, whereas during the nitrate injection, two other groups of chemolithoautotrophic bacteria collectively accounted for 80% of the metatranscriptome: (1) members of the Fe(II)-oxidizing Gallionellaceae family and (2) strains of the S-oxidizing species, Sulfurimonas denitrificans. Notably, the proportion of the metatranscriptome accounted for by these three groups was considerably greater than the proportion of the metagenome coverage that they represented. Transcriptional analysis revealed some unexpected metabolic couplings, in particular, putative nitrate-dependent Fe(II) and S oxidation among nominally microaerophilic Gallionellaceae strains, including expression of periplasmic (NapAB) and membrane-bound (NarGHI) nitrate reductases. The three most active groups of chemolithoautotrophic bacteria in this study had overlapping metabolisms that allowed them to occupy different yet related metabolic niches throughout the study. Overall, these results highlight the important role that chemolithoautotrophy can have in aquifer biogeochemical cycling, a finding that has broad implications for understanding terrestrial carbon cycling and is supported by recent studies of geochemically diverse aquifers. JF - ISME Journal AU - Jewell, Talia N M AU - Karaoz, Ulas AU - Brodie, Eoin L AU - Williams, Kenneth H AU - Beller, Harry R AD - Earth and Environmental Sciences, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 2106 EP - 2117 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 10 IS - 9 SN - 1751-7362, 1751-7362 KW - Microbiology Abstracts B: Bacteriology; Environment Abstracts; Ecology Abstracts KW - Aquifers KW - Nitrate KW - Ecosystems KW - Niches KW - Anaerobic microorganisms KW - Gene expression KW - Ground water KW - Bacteria KW - Nitrates KW - Biogeochemistry KW - Organic matter KW - Nitrate reductase KW - Carbon cycle KW - Transcription KW - Microbial activity KW - Oxidation KW - Groundwater KW - Metabolism KW - D 04040:Ecosystem and Ecology Studies KW - ENA 21:Wildlife KW - J 02450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815705202?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ISME+Journal&rft.atitle=Metatranscriptomic+evidence+of+pervasive+and+diverse+chemolithoautotrophy+relevant+to+C%2C+S%2C+N+and+Fe+cycling+in+a+shallow+alluvial+aquifer&rft.au=Jewell%2C+Talia+N+M%3BKaraoz%2C+Ulas%3BBrodie%2C+Eoin+L%3BWilliams%2C+Kenneth+H%3BBeller%2C+Harry+R&rft.aulast=Jewell&rft.aufirst=Talia+N&rft.date=2016-09-01&rft.volume=10&rft.issue=9&rft.spage=2106&rft.isbn=&rft.btitle=&rft.title=ISME+Journal&rft.issn=17517362&rft_id=info:doi/10.1038%2Fismej.2016.25 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-10-12 N1 - SubjectsTermNotLitGenreText - Gene expression; Aquifers; Nitrate; Niches; Organic matter; Oxidation; Nitrate reductase; Ground water; Carbon cycle; Transcription; Anaerobic microorganisms; Metabolism; Bacteria; Ecosystems; Nitrates; Biogeochemistry; Microbial activity; Groundwater DO - http://dx.doi.org/10.1038/ismej.2016.25 ER - TY - JOUR T1 - Hydrologic testing during drilling: application of the flowing fluid electrical conductivity (FFEC) logging method to drilling of a deep borehole TT - Test hydrologique en cours de forage: application de la methode de logging de la conductivite electrique du fluide s'ecoulant pour le forage d'un puits profond AN - 1815698134; PQ0003592241 AB - Drilling of a deep borehole does not normally allow for hydrologic testing during the drilling period. It is only done when drilling experiences a large loss (or high return) of drilling fluid due to penetration of a large-transmissivity zone. The paper proposes the possibility of conducting flowing fluid electrical conductivity (FFEC) logging during the drilling period, with negligible impact on the drilling schedule, yet providing important information on depth locations of both high- and low-transmissivity zones and their hydraulic properties. The information can be used to guide downhole fluid sampling and post-drilling detailed testing of the borehole. The method has been applied to the drilling of a 2,500-m borehole at Aare, central Sweden, firstly when the drilling reached 1,600 m, and then when the drilling reached the target depth of 2,500 m. Results unveil eight hydraulically active zones from 300 m down to borehole bottom, with depths determined to within the order of a meter. Further, the first set of data allows the estimation of hydraulic transmissivity values of the six hydraulically conductive zones found from 300 to 1,600 m, which are very low and range over one order of magnitude.Original Abstract: Le forage d'un puits profond ne permet pas normalement la realisation de tests hydrologiques au cours de la periode de forage. Ils sont realises uniquement lorsque le forage experience une grande perte (ou rendement eleve) de fluide de forage en raison de la penetration d'une zone de grande transmissivite. L'article propose la possibilite d'effectuer un logging de conductivite electrique du fluide qui s'ecoule au cours de la periode de forage, avec un impact negligeable sur le calendrier de realisation de forage, tout en fournissant d'importantes informations sur la profondeur des emplacements aussi bien des zones a transmissivite elevee que faible et de leurs proprietes hydrauliques. Les informations peuvent etre utilisees pour guide l'echantillonnage du fluide de forage et la realisation de tests detailles post-forage du puits. La methode a ete appliquee sur le forage d'un puits de 2,500 m a Aare, partie centrale de la Suede, lorsque le forage a atteint 1,600 m, puis lorsque le forage a atteint la profondeur cible de 2,500 m. Les resultats devoilent huit zones actives hydrauliquement a partir de 300 m jusqu'au fond de trou, avec des profondeurs determinees de l'ordre du metre. En outre, le premier jeu de donnees permet l'estimation des valeurs de transmissivite hydraulique pour six zones conductrices hydrauliquement situees entre 300 et 1,600 m de profondeur, qui sont tres faibles et s'etendent sur un ordre de grandeur. JF - Hydrogeology Journal AU - Tsang, Chin-Fu AU - Rosberg, Jan-Erik AU - Sharma, Prabhakar AU - Berthet, Theo AU - Juhlin, Christopher AU - Niemi, Auli AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA, cftsang@lbl.gov Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 1333 EP - 1341 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 24 IS - 6 SN - 1431-2174, 1431-2174 KW - Environment Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - ANE, Sweden KW - Hydraulics KW - Drilling KW - Drilling fluids KW - Boreholes KW - Logging KW - Electrical conductivity KW - Drilling Fluids KW - Sampling KW - Hydraulic Properties KW - Conductivity KW - Transmissivity KW - Methodology KW - AQ 00001:Water Resources and Supplies KW - Q2 09103:Information services KW - SW 0810:General KW - ENA 15:Renewable Resources-Terrestrial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815698134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrogeology+Journal&rft.atitle=Hydrologic+testing+during+drilling%3A+application+of+the+flowing+fluid+electrical+conductivity+%28FFEC%29+logging+method+to+drilling+of+a+deep+borehole&rft.au=Tsang%2C+Chin-Fu%3BRosberg%2C+Jan-Erik%3BSharma%2C+Prabhakar%3BBerthet%2C+Theo%3BJuhlin%2C+Christopher%3BNiemi%2C+Auli&rft.aulast=Tsang&rft.aufirst=Chin-Fu&rft.date=2016-09-01&rft.volume=24&rft.issue=6&rft.spage=1333&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2Fs10040-016-1405-z LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Number of references - 22 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Electrical conductivity; Drilling fluids; Boreholes; Methodology; Logging; Hydraulics; Conductivity; Drilling Fluids; Drilling; Sampling; Transmissivity; Hydraulic Properties; ANE, Sweden DO - http://dx.doi.org/10.1007/s10040-016-1405-z ER - TY - JOUR T1 - Rapid systematic assessment of the detection and attribution of regional anthropogenic climate change AN - 1815697006; PQ0003613459 AB - Despite being a well-established research field, the detection and attribution of observed climate change to anthropogenic forcing is not yet provided as a climate service. One reason for this is the lack of a methodology for performing tailored detection and attribution assessments on a rapid time scale. Here we develop such an approach, based on the translation of quantitative analysis into the "confidence" language employed in recent Assessment Reports of the Intergovernmental Panel on Climate Change. While its systematic nature necessarily ignores some nuances examined in detailed expert assessments, the approach nevertheless goes beyond most detection and attribution studies in considering contributors to building confidence such as errors in observational data products arising from sparse monitoring networks. When compared against recent expert assessments, the results of this approach closely match those of the existing assessments. Where there are small discrepancies, these variously reflect ambiguities in the details of what is being assessed, reveal nuances or limitations of the expert assessments, or indicate limitations of the accuracy of the sort of systematic approach employed here. Deployment of the method on 116 regional assessments of recent temperature and precipitation changes indicates that existing rules of thumb concerning the detectability of climate change ignore the full range of sources of uncertainty, most particularly the importance of adequate observational monitoring. JF - Climate Dynamics AU - Stone, Daithi A AU - Hansen, Gerrit AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS-50F1650, Berkeley, CA, 94720, USA, dstone@lbl.gov Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 1399 EP - 1415 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 47 IS - 5-6 SN - 0930-7575, 0930-7575 KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Atmospheric precipitations KW - Climates KW - Climate change KW - Temperature KW - Anthropogenic factors KW - Intergovernmental Panel on Climate Change KW - Precipitation KW - Systematics KW - Buildings KW - Anthropogenic climate changes KW - Methodology KW - Translations KW - Monitoring KW - M2 551.583:Variations (551.583) KW - SW 0810:General KW - Q2 09244:Air-sea coupling KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815697006?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climate+Dynamics&rft.atitle=Rapid+systematic+assessment+of+the+detection+and+attribution+of+regional+anthropogenic+climate+change&rft.au=Stone%2C+Daithi+A%3BHansen%2C+Gerrit&rft.aulast=Stone&rft.aufirst=Daithi&rft.date=2016-09-01&rft.volume=47&rft.issue=5-6&rft.spage=1399&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-015-2909-2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Number of references - 47 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Translations; Climate change; Anthropogenic factors; Methodology; Precipitation; Intergovernmental Panel on Climate Change; Anthropogenic climate changes; Climates; Temperature; Monitoring; Systematics; Buildings DO - http://dx.doi.org/10.1007/s00382-015-2909-2 ER - TY - JOUR T1 - Evaluation of mineral reactive surface area estimates for prediction of reactivity of a multi-mineral sediment AN - 1815670028; 2016-076498 AB - Our limited understanding of mineral reactive surface area contributes to significant uncertainties in quantitative simulations of reactive chemical transport in subsurface processes. Continuum formulations for reactive transport typically use a number of different approximations for reactive surface area, including geometric, specific, and effective surface area. In this study, reactive surface area estimates are developed and evaluated for their ability to predict dissolution rates in a well-stirred flow-through reactor experiment using disaggregated samples from the Nagaoka pilot CO (sub 2) injection site (Japan). The disaggregated samples are reacted with CO (sub 2) acidified synthetic brine under conditions approximating the field conditions and the evolution of solute concentrations in the reactor effluent is tracked over time. The experiments, carried out in fluid-dominated conditions at a pH of 3.2 for 650 h, resulted in substantial dissolution of the sample and release of a disproportionately large fraction of the divalent cations. Traditional reactive surface area estimation methods, including an adjusted geometric surface area and a BET-based surface area, are compared to a newly developed image-based method. Continuum reactive transport modeling is used to determine which of the reactive surface area models provides the best match with the effluent chemistry from the well-stirred reactor. The modeling incorporates laboratory derived mineral dissolution rates reported in the literature and the initial modal mineralogy of the Nagaoka sediment was determined from scanning electron microscopy (SEM) characterization. The closest match with the observed steady-state effluent concentrations was obtained using specific surface area estimates from the image-based approach supplemented by literature-derived BET measurements. To capture the evolving effluent chemistry, particularly over the first 300 h of the experiment, it was also necessary to account for the grain size distribution in the sediment and the presence of a highly reactive volcanic glass phase that shows preferential cation leaching. JF - Geochimica et Cosmochimica Acta AU - Beckingham, Lauren E AU - Mitnick, Elizabeth H AU - Steefel, Carl I AU - Zhang, Shuo AU - Voltolini, Marco AU - Swift, Alexander M AU - Yang, Li AU - Cole, David R AU - Sheets, Julia M AU - Ajo-Franklin, Jonathan B AU - DePaolo, Donald J AU - Mito, Saeko AU - Xue, Ziqiu Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 310 EP - 329 PB - Elsevier, New York, NY VL - 188 SN - 0016-7037, 0016-7037 KW - solute transport KW - Far East KW - X-ray diffraction data KW - simulation KW - climate change KW - reservoir rocks KW - carbon dioxide KW - air pollution KW - reactivity KW - sedimentary rocks KW - water-rock interaction KW - transport KW - X-ray fluorescence spectra KW - spectra KW - chemical composition KW - Asia KW - uncertainty KW - pH KW - climate KW - surface properties KW - experimental studies KW - carbon sequestration KW - pollutants KW - statistical analysis KW - solutes KW - prediction KW - pollution KW - electron microscopy data KW - gas injection KW - Niigata Japan KW - mathematical methods KW - brines KW - reservoir properties KW - Nagaoka Japan KW - Honshu KW - SEM data KW - Japan KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815670028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Evaluation+of+mineral+reactive+surface+area+estimates+for+prediction+of+reactivity+of+a+multi-mineral+sediment&rft.au=Beckingham%2C+Lauren+E%3BMitnick%2C+Elizabeth+H%3BSteefel%2C+Carl+I%3BZhang%2C+Shuo%3BVoltolini%2C+Marco%3BSwift%2C+Alexander+M%3BYang%2C+Li%3BCole%2C+David+R%3BSheets%2C+Julia+M%3BAjo-Franklin%2C+Jonathan+B%3BDePaolo%2C+Donald+J%3BMito%2C+Saeko%3BXue%2C+Ziqiu&rft.aulast=Beckingham&rft.aufirst=Lauren&rft.date=2016-09-01&rft.volume=188&rft.issue=&rft.spage=310&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.05.040 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 111 N1 - PubXState - NY N1 - Document feature - illus. incl. 9 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-09-01 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - air pollution; Asia; brines; carbon dioxide; carbon sequestration; chemical composition; climate; climate change; electron microscopy data; experimental studies; Far East; gas injection; Honshu; Japan; mathematical methods; Nagaoka Japan; Niigata Japan; pH; pollutants; pollution; prediction; reactivity; reservoir properties; reservoir rocks; sedimentary rocks; SEM data; simulation; solute transport; solutes; spectra; statistical analysis; surface properties; transport; uncertainty; water-rock interaction; X-ray diffraction data; X-ray fluorescence spectra DO - http://dx.doi.org/10.1016/j.gca.2016.05.040 ER - TY - JOUR T1 - Field testing of modular borehole monitoring with simultaneous distributed acoustic sensing and geophone vertical seismic profiles at Citronelle, Alabama AN - 1811901264; PQ0003555638 AB - A modular borehole monitoring concept has been implemented to provide a suite of well-based monitoring tools that can be deployed cost effectively in a flexible and robust package. The initial modular borehole monitoring system was deployed as part of a CO sub(2) injection test operated by the Southeast Regional Carbon Sequestration Partnership near Citronelle, Alabama. The Citronelle modular monitoring system transmits electrical power and signals, fibre-optic light pulses, and fluids between the surface and a reservoir. Additionally, a separate multi-conductor tubing-encapsulated line was used for borehole geophones, including a specialized clamp for casing clamping with tubing deployment. The deployment of geophones and fibre-optic cables allowed comparison testing of distributed acoustic sensing. We designed a large source effort (>64 sweeps per source point) to test fibre-optic vertical seismic profile and acquired data in 2013. The native measurement in the specific distributed acoustic sensing unit used (an iDAS from Silixa Ltd) is described as a localized strain rate. Following a processing flow of adaptive noise reduction and rebalancing the signal to dimensionless strain, improvement from repeated stacking of the source was observed. Conversion of the rebalanced strain signal to equivalent velocity units, via a scaling by local apparent velocity, allows quantitative comparison of distributed acoustic sensing and geophone data in units of velocity. We see a very good match of uncorrelated time series in both amplitude and phase, demonstrating that velocity-converted distributed acoustic sensing data can be analyzed equivalent to vertical geophones. We show that distributed acoustic sensing data, when averaged over an interval comparable to typical geophone spacing, can obtain signal-to-noise ratios of 18 dB to 24 dB below clamped geophones, a result that is variable with noise spectral amplitude because the noise characteristics are not identical. With vertical seismic profile processing, we demonstrate the effectiveness of downgoing deconvolution from the large spatial sampling of distributed acoustic sensing data, along with improved upgoing reflection quality. We conclude that the extra source effort currently needed for tubing-deployed distributed acoustic sensing vertical seismic profile, as part of a modular monitoring system, is well compensated by the extra spatial sampling and lower deployment cost as compared with conventional borehole geophones. JF - Geophysical Prospecting AU - Daley, T M AU - Miller, DE AU - Dodds, K AU - Cook, P AU - Freifeld, B M AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California, USA. Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 1318 EP - 1334 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 64 IS - 5 SN - 0016-8025, 0016-8025 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - ASW, USA, Alabama KW - Acoustics KW - Ecological distribution KW - Velocity KW - Strain KW - Boreholes KW - Costs KW - Acoustic imagery KW - Carbon KW - Seismometers KW - Seismic profiles KW - Noise KW - Sampling KW - Monitoring KW - Carbon dioxide KW - Monitoring systems KW - Q2 09262:Methods and instruments KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1811901264?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Prospecting&rft.atitle=Field+testing+of+modular+borehole+monitoring+with+simultaneous+distributed+acoustic+sensing+and+geophone+vertical+seismic+profiles+at+Citronelle%2C+Alabama&rft.au=Daley%2C+T+M%3BMiller%2C+DE%3BDodds%2C+K%3BCook%2C+P%3BFreifeld%2C+B+M&rft.aulast=Daley&rft.aufirst=T&rft.date=2016-09-01&rft.volume=64&rft.issue=5&rft.spage=1318&rft.isbn=&rft.btitle=&rft.title=Geophysical+Prospecting&rft.issn=00168025&rft_id=info:doi/10.1111%2F1365-2478.12324 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Acoustic imagery; Carbon; Seismic profiles; Seismometers; Ecological distribution; Carbon dioxide; Boreholes; Monitoring systems; Costs; Acoustics; Noise; Velocity; Sampling; Monitoring; Strain; ASW, USA, Alabama DO - http://dx.doi.org/10.1111/1365-2478.12324 ER - TY - JOUR T1 - Governance strategies to achieve zero-energy buildings in China AN - 1846405177; PQ0003864717 AB - In response to climate change, governments are developing policies to move toward ultra-low-energy or 'zero-energy' buildings (ZEBs). Policies, codes, and governance structures vary among regions, and there is no universally accepted definition of a ZEB. These variables make it difficult, for countries such as China that wish to set similar goals, to determine an optimum approach. This paper reviews ZEBs policies, programmes, and governance approaches in two jurisdictions that are leading ZEBs development: Denmark and the state of California in the United States. Different modes of governance (hierarchy: principal-agent relations, market: self organizing and network: independent actors) are examined specifically in relation to policy instruments (prescriptive, performance or outcome-based). The analysis highlights differences in institutional conditions and examines available data on energy performance resulting from a building policy framework. The purpose is to identify ZEBs governance and implementation deficits in China and analyse alternative governance approaches that could be employed in China, which is currently developing ZEBs targets and policies. Conclusions suggest that the ZEBs governance structure in China could benefit from widened participation by all societal actors involved in achieving ZEBs targets. China's ZEBs policies would benefit from employing a more balanced hybrid governance approach. JF - Building Research & Information AU - Zhang, Jingjing AU - Zhou, Nan AU - Hinge, Adam AU - Feng, Wei AU - Zhang, Shicong AD - Environmental and Energy Systems Studies, Lund University, PO Box 118, Lund SE-221 00, Sweden, NZhou@lbl.gov Y1 - 2016/08/17/ PY - 2016 DA - 2016 Aug 17 SP - 604 EP - 618 PB - Taylor & Francis Group Ltd., 2 Park Square Oxford OX14 4RN United Kingdom VL - 44 IS - 5-6 SN - 0961-3218, 0961-3218 KW - Environment Abstracts KW - INE, USA, California KW - Energy KW - Hybrids KW - Climate change KW - Jurisdiction KW - Denmark KW - China, People's Rep. KW - Buildings KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1846405177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Building+Research+%26+Information&rft.atitle=Governance+strategies+to+achieve+zero-energy+buildings+in+China&rft.au=Zhang%2C+Jingjing%3BZhou%2C+Nan%3BHinge%2C+Adam%3BFeng%2C+Wei%3BZhang%2C+Shicong&rft.aulast=Zhang&rft.aufirst=Jingjing&rft.date=2016-08-17&rft.volume=44&rft.issue=5-6&rft.spage=604&rft.isbn=&rft.btitle=&rft.title=Building+Research+%26+Information&rft.issn=09613218&rft_id=info:doi/10.1080%2F09613218.2016.1157345 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Last updated - 2017-01-18 N1 - SubjectsTermNotLitGenreText - Hybrids; Energy; Jurisdiction; Climate change; Buildings; INE, USA, California; Denmark; China, People's Rep. DO - http://dx.doi.org/10.1080/09613218.2016.1157345 ER - TY - JOUR T1 - Olsalazine-Based Metal-Organic Frameworks as Biocompatible Platforms for H2 Adsorption and Drug Delivery. AN - 1812439406; 27486905 AB - The drug olsalazine (H4olz) was employed as a ligand to synthesize a new series of mesoporous metal-organic frameworks that are expanded analogues of the well-known M2(dobdc) materials (dobdc(4-) = 2,5-dioxido-1,4-benzenedicarboxylate; M-MOF-74). The M2(olz) frameworks (M = Mg, Fe, Co, Ni, and Zn) exhibit high surface areas with large hexagonal pore apertures that are approximately 27 Å in diameter. Variable temperature H2 adsorption isotherms revealed strong adsorption at the open metal sites, and in situ infrared spectroscopy experiments on Mg2(olz) and Ni2(olz) were used to determine site-specific H2 binding enthalpies. In addition to its capabilities for gas sorption, the highly biocompatible Mg2(olz) framework was also evaluated as a platform for the delivery of olsalazine and other encapsulated therapeutics. The Mg2(olz) material (86 wt % olsalazine) was shown to release the therapeutic linker through dissolution of the framework under simulated physiological conditions. Furthermore, Mg2(olz) was used to encapsulate phenethylamine (PEA), a model drug for a broad class of bioactive compounds. Under simulated physiological conditions, Mg2(olz)(PEA)2 disassembled to release PEA from the pores and olsalazine from the framework itself, demonstrating that multiple therapeutic components can be delivered together at different rates. The low toxicity, high surface areas, and coordinatively unsaturated metal sites make these M2(olz) materials promising for a range of potential applications, including drug delivery in the treatment of gastrointestinal diseases. JF - Journal of the American Chemical Society AU - Levine, Dana J AU - Runčevski, Tomče AU - Kapelewski, Matthew T AU - Keitz, Benjamin K AU - Oktawiec, Julia AU - Reed, Douglas A AU - Mason, Jarad A AU - Jiang, Henry Z H AU - Colwell, Kristen A AU - Legendre, Christina M AU - FitzGerald, Stephen A AU - Long, Jeffrey R AD - Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States. ; Department of Physics and Astronomy, Oberlin College , Oberlin, Ohio 44074, United States. Y1 - 2016/08/17/ PY - 2016 DA - 2016 Aug 17 SP - 10143 EP - 10150 VL - 138 IS - 32 KW - Index Medicus UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812439406?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Chemical+Society&rft.atitle=Olsalazine-Based+Metal-Organic+Frameworks+as+Biocompatible+Platforms+for+H2+Adsorption+and+Drug+Delivery.&rft.au=Levine%2C+Dana+J%3BRun%C4%8Devski%2C+Tom%C4%8De%3BKapelewski%2C+Matthew+T%3BKeitz%2C+Benjamin+K%3BOktawiec%2C+Julia%3BReed%2C+Douglas+A%3BMason%2C+Jarad+A%3BJiang%2C+Henry+Z+H%3BColwell%2C+Kristen+A%3BLegendre%2C+Christina+M%3BFitzGerald%2C+Stephen+A%3BLong%2C+Jeffrey+R&rft.aulast=Levine&rft.aufirst=Dana&rft.date=2016-08-17&rft.volume=138&rft.issue=32&rft.spage=10143&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Chemical+Society&rft.issn=1520-5126&rft_id=info:doi/10.1021%2Fjacs.6b03523 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-08-17 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1021/jacs.6b03523 ER - TY - JOUR T1 - Reactive transport of uranium in a ground water bioreduction study; insights from high temporal resolution (super 238) U/ (super 235) U data AN - 1812217484; 2016-069277 AB - We conducted a detailed investigation of U isotopes in conjunction with a broad geochemical investigation during field-scale biostimulation and desorption experiments. This investigation was carried out in the uranium-contaminated alluvial aquifer of the Rifle field research site. In this well-characterized setting, a more comprehensive understanding of U isotope geochemistry is possible. Our results indicate that U isotope fractionation is consistently observed across multiple experiments at the Rifle site. Microbially-mediated reduction is suggested to account for most or all of the observed fractionation as abiotic reduction has been demonstrated to impart much smaller, often near-zero, isotopic fractionation or isotopic fractionation in the opposite direction. Data from some time intervals are consistent with a simple model for transport and U(VI) reduction, where the fractionation factor (epsilon = +0.65 ppm to +0.85 ppm) is consistent with experimental studies. However, during other time intervals the observed patterns in our data indicate the importance of other processes in governing U concentrations and (super 238) U/ (super 235) U ratios. For instance, we demonstrate that departures from Rayleigh behavior in groundwater systems arise from the presence of adsorbed species. We also show that isotope data are sensitive to the onset of oxidation after biostimulation ends, even in the case where reduction continues to remove contaminant uranium downstream. Our study and the described conceptual model support the use of (super 238) U/ (super 235) U ratios as a tool for evaluating the efficacy of biostimulation and potentially other remedial strategies employed at Rifle and other uranium-contaminated sites. JF - Geochimica et Cosmochimica Acta AU - Shiel, A E AU - Johnson, T M AU - Lundstrom, C C AU - Laubach, P G AU - Long, P E AU - Williams, Kenneth H Y1 - 2016/08/15/ PY - 2016 DA - 2016 Aug 15 SP - 218 EP - 236 PB - Elsevier, New York, NY VL - 187 SN - 0016-7037, 0016-7037 KW - United States KW - solute transport KW - isotope fractionation KW - desorption KW - Garfield County Colorado KW - isotopes KW - observation wells KW - mass spectra KW - reservoir rocks KW - remediation KW - ground water KW - Rifle Colorado KW - reactivity KW - radioactive isotopes KW - transport KW - sediments KW - spectra KW - reduction KW - water pollution KW - high-resolution methods KW - experimental studies KW - monitoring KW - clastic sediments KW - pollutants KW - isotope ratios KW - solutes KW - pollution KW - aquifers KW - models KW - ICP mass spectra KW - biogenic processes KW - metals KW - bacteria KW - alluvium KW - uranium KW - temporal distribution KW - U-238/U-235 KW - Colorado KW - actinides KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812217484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Reactive+transport+of+uranium+in+a+ground+water+bioreduction+study%3B+insights+from+high+temporal+resolution+%28super+238%29+U%2F+%28super+235%29+U+data&rft.au=Shiel%2C+A+E%3BJohnson%2C+T+M%3BLundstrom%2C+C+C%3BLaubach%2C+P+G%3BLong%2C+P+E%3BWilliams%2C+Kenneth+H&rft.aulast=Shiel&rft.aufirst=A&rft.date=2016-08-15&rft.volume=187&rft.issue=&rft.spage=218&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.05.020 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 51 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-08-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; alluvium; aquifers; bacteria; biogenic processes; clastic sediments; Colorado; desorption; experimental studies; Garfield County Colorado; ground water; high-resolution methods; ICP mass spectra; isotope fractionation; isotope ratios; isotopes; mass spectra; metals; models; monitoring; observation wells; pollutants; pollution; radioactive isotopes; reactivity; reduction; remediation; reservoir rocks; Rifle Colorado; sediments; solute transport; solutes; spectra; temporal distribution; transport; U-238/U-235; United States; uranium; water pollution DO - http://dx.doi.org/10.1016/j.gca.2016.05.020 ER - TY - JOUR T1 - Beneficial behavior of nitric oxide in copper-treated medicinal plants. AN - 1790463969; 27131454 AB - Despite numerous reports implicating nitric oxide (NO) in the environmental-stress responses of plants, the specific metabolic and ionic mechanisms of NO-mediated adaptation to metal stress remain unclear. Here, the impacts of copper (Cu) and NO donor (SNP, 50μM) alone or in combination on the well-known medicinal plant Catharanthus roseus L. were investigated. Our results showed that Cu markedly increased Cu(2+) accumulation, decreased NO production, and disrupted mineral equilibrium and proton pumps, thereby stimulating a burst of ROS; in addition, SNP ameliorates the negative toxicity of Cu, and cPTIO reverses this action. Furthermore, the accumulations of ROS and NO resulted in reciprocal changes. Interestingly, nearly all of the investigated amino acids and the total phenolic content in the roots were promoted by the SNP treatment but were depleted by the Cu+SNP treatment, which is consistent with the self-evident increases in phenylalanine ammonia-lyase activity and total soluble phenol content induced by SNP. Unexpectedly, leaf vincristine and vinblastine as well as the total alkaloid content (ca. 1.5-fold) were decreased by Cu but markedly increased by SNP (+38% and +49% of the control levels). This study provides the first evidence of the beneficial behavior of NO, rather than other compounds, in depleting Cu toxicity by regulating mineral absorption, reestablishing ATPase activities, and stimulating secondary metabolites. JF - Journal of hazardous materials AU - Liu, Shiliang AU - Yang, Rongjie AU - Pan, Yuanzhi AU - Ren, Bo AU - Chen, Qibing AU - Li, Xi AU - Xiong, Xi AU - Tao, Jianjun AU - Cheng, Qingsu AU - Ma, Mingdong AD - College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China. Electronic address: liushiliang9@163.com. ; College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China. ; Institute of Biotechnology & Breeding, Sichuan Academy of Forestry, Chengdu, Sichuan 610081, China. ; College of Agriculture, Food & Natural Resources, University of Missouri, Columbia, MO 65211, USA. ; Division of Life Sciences, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; Department of Electrical & Biomedical Engineering, University of Nevada, Reno, NV 89557, USA. ; College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China. Electronic address: 610245498@qq.com. Y1 - 2016/08/15/ PY - 2016 DA - 2016 Aug 15 SP - 140 EP - 154 VL - 314 KW - Index Medicus KW - Amino acids KW - Antitumor alkaloids KW - Copper stress KW - Catharanthus roseus L. KW - Phenolic metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790463969?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+hazardous+materials&rft.atitle=Beneficial+behavior+of+nitric+oxide+in+copper-treated+medicinal+plants.&rft.au=Liu%2C+Shiliang%3BYang%2C+Rongjie%3BPan%2C+Yuanzhi%3BRen%2C+Bo%3BChen%2C+Qibing%3BLi%2C+Xi%3BXiong%2C+Xi%3BTao%2C+Jianjun%3BCheng%2C+Qingsu%3BMa%2C+Mingdong&rft.aulast=Liu&rft.aufirst=Shiliang&rft.date=2016-08-15&rft.volume=314&rft.issue=&rft.spage=140&rft.isbn=&rft.btitle=&rft.title=Journal+of+hazardous+materials&rft.issn=1873-3336&rft_id=info:doi/10.1016%2Fj.jhazmat.2016.04.042 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-05-20 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1016/j.jhazmat.2016.04.042 ER - TY - JOUR T1 - Molecular dynamics simulations of anion exclusion in clay interlayer nanopores AN - 1859792229; 2017-004879 AB - The aqueous chemistry of water films confined between clay mineral surfaces remains an important unknown in predictions of radioelement migration from radioactive waste repositories. This issue is particularly important in the case of long-lived anionic radioisotopes ( (super 129) I (super -) , (super 99) TcO (sub 4) (super -) , (super 36) Cl (super -) ) which interact with clay minerals primarily by anion exclusion. For example, models of ion migration in clayey media do not agree as to whether anions are completely or partially excluded from clay interlayer nanopores. In the present study, this key issue was addressed for Cl (super -) using MD simulations for a range of nanopore widths (6 to 15 A) overlapping the range of average pore widths that exists in engineered clay barriers. The MD simulation results were compared with the predictions of a thermodynamic model (Donnan Equilibrium model) and two pore-scale models based on the Poisson-Boltzmann equation under the assumption that interlayer water behaves as bulk liquid water. The simulations confirmed that anion exclusion from clay interlayers is greater than predicted by the pore-scale models, particularly at the smallest pore size examined. This greater anion exclusion stems from Cl (super -) being more weakly solvated in nano-confined water than it is in bulk liquid water. Anion exclusion predictions based on the Poisson-Boltzmann equation were consistent with the MD simulation results, however, if the predictions included an ion closest approach distance to the clay mineral surface on the order of 2.0 + or - 0.8 A. These findings suggest that clay interlayers approach a state of complete anion exclusion (hence, ideal semi-permeable membrane properties) at a pore width of 4.2 + or - 1.5 A. JF - Clays and Clay Minerals AU - Tournassat, Christophe AU - Bourg, Ian C AU - Holmboe, Michael AU - Sposito, Garrison AU - Steefel, Carl I Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 374 EP - 388 PB - Clay Minerals Society, Chantilly, VA VL - 64 IS - 4 SN - 0009-8604, 0009-8604 KW - silicates KW - clay mineralogy KW - halogens KW - crystal structure KW - simulation KW - radioactive waste KW - sedimentary rocks KW - chemical reactions KW - water-rock interaction KW - chemical properties KW - molecular dynamics KW - thermodynamic properties KW - geochemistry KW - disposal barriers KW - mineral interlayer KW - chlorine KW - migration KW - anions KW - fluid flow KW - clay minerals KW - claystone KW - lattice Boltzmann method KW - sheet silicates KW - waste disposal KW - crystal chemistry KW - clastic rocks KW - 06A:Sedimentary petrology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859792229?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Clays+and+Clay+Minerals&rft.atitle=Molecular+dynamics+simulations+of+anion+exclusion+in+clay+interlayer+nanopores&rft.au=Tournassat%2C+Christophe%3BBourg%2C+Ian+C%3BHolmboe%2C+Michael%3BSposito%2C+Garrison%3BSteefel%2C+Carl+I&rft.aulast=Tournassat&rft.aufirst=Christophe&rft.date=2016-08-01&rft.volume=64&rft.issue=4&rft.spage=374&rft.isbn=&rft.btitle=&rft.title=Clays+and+Clay+Minerals&rft.issn=00098604&rft_id=info:doi/10.1346%2FCCMN.2016.0640403 L2 - http://www.ingentaconnect.com/content/cms/ccm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Clay Minerals Society | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2017-01-01 N1 - Number of references - 76 N1 - PubXState - VA N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2017-01-19 N1 - CODEN - CLCMAB N1 - SubjectsTermNotLitGenreText - anions; chemical properties; chemical reactions; chlorine; clastic rocks; clay mineralogy; clay minerals; claystone; crystal chemistry; crystal structure; disposal barriers; fluid flow; geochemistry; halogens; lattice Boltzmann method; migration; mineral interlayer; molecular dynamics; radioactive waste; sedimentary rocks; sheet silicates; silicates; simulation; thermodynamic properties; waste disposal; water-rock interaction DO - http://dx.doi.org/10.1346/CCMN.2016.0640403 ER - TY - JOUR T1 - Capillary pressure-saturation relations in quartz and carbonate sands; limitations for correlating capillary and wettability influences on air, oil, and supercritical CO (sub 2) trapping AN - 1855316316; 2017-001070 AB - Capillary pressure (P (sub c) )-saturation (S (sub w) ) relations are essential for predicting equilibrium and flow of immiscible fluid pairs in soils and deeper geologic formations. In systems that are difficult to measure, behavior is often estimated based on capillary scaling of easily measured P (sub c) -S (sub w) relations (e.g., air-water, and oil-water), yet the reliability of such approximations needs to be examined. In this study, 17 sets of brine drainage and imbibition curves were measured with air-brine, decane-brine, and supercritical (sc) CO (sub 2) -brine in homogeneous quartz and carbonate sands, using porous plate systems under ambient (0.1 MPa, 23 degrees C) and reservoir (12.0 MPa, 45 degrees C) conditions. Comparisons between these measurements showed significant differences in residual nonwetting phase saturation, S (sub nw, r) . Through applying capillary scaling, changes in interfacial properties were indicated, particularly wettability. With respect to the residual trapping of the nonwetting phases, S (sub nwr, CO2) > S (sub nwr, decane) > S (sub nwr, air) . Decane-brine and scCO (sub 2) -brine P (sub c) -S (sub w) curves deviated significantly from predictions assuming hydrophilic interactions. Moreover, neither the scaled capillary behavior nor S (sub nw, r) for scCO (sub 2) -brine were well represented by decane-brine, apparently because of differences in wettability and viscosities, indicating limitations for using decane (and other organic liquids) as a surrogate fluid in studies intended to apply to geological carbon sequestration. Thus, challenges remain in applying scaling for predicting capillary trapping and multiphase displacement processes across such diverse fields as vadose zone hydrology, enhanced oil recovery, and geologic carbon sequestration. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Water Resources Research AU - Wang, Shibo AU - Tokunaga, Tetsu K AU - Wan, Jiamin AU - Dong, Wenming AU - Kim, Yongman Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 6671 EP - 6690 PB - American Geophysical Union, Washington, DC VL - 52 IS - 8 SN - 0043-1397, 0043-1397 KW - sand KW - experimental studies KW - deep aquifers KW - carbon sequestration KW - pressure KW - capillary pressure KW - clastic sediments KW - moisture KW - techniques KW - porous materials KW - capillary water KW - physical models KW - ground water KW - carbon dioxide KW - aquifers KW - saturation KW - brines KW - sediments KW - wettability KW - quartz sand KW - carbonates KW - saline composition KW - instruments KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855316316?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Capillary+pressure-saturation+relations+in+quartz+and+carbonate+sands%3B+limitations+for+correlating+capillary+and+wettability+influences+on+air%2C+oil%2C+and+supercritical+CO+%28sub+2%29+trapping&rft.au=Wang%2C+Shibo%3BTokunaga%2C+Tetsu+K%3BWan%2C+Jiamin%3BDong%2C+Wenming%3BKim%2C+Yongman&rft.aulast=Wang&rft.aufirst=Shibo&rft.date=2016-08-01&rft.volume=52&rft.issue=8&rft.spage=6671&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2016WR018816 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2017-01-01 N1 - Number of references - 75 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2017-01-05 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - aquifers; brines; capillary pressure; capillary water; carbon dioxide; carbon sequestration; carbonates; clastic sediments; deep aquifers; experimental studies; ground water; instruments; moisture; physical models; porous materials; pressure; quartz sand; saline composition; sand; saturation; sediments; techniques; wettability DO - http://dx.doi.org/10.1002/2016WR018816 ER - TY - JOUR T1 - Environmental feasibility of soil amendment with flue gas desulfurization gypsum (FGDG) for terrestrial carbon sequestration AN - 1840617787; 2016-098942 AB - Technologies for increasing carbon storage in soils are gathering attention as a means for mitigating atmospheric CO (sub 2) emissions. Carbon sequestration can be achieved by controlling the organic carbon stock in soil and by accelerating mineral carbonation. In this study, carbon sequestration capacity was measured in soil columns treated with flue gas desulfurization gypsum (FGDG), a by-product of electric power generation. The feasibility of using FGDG as an environmentally benign alternative to gypsum or anhydrite was examined using a toxicity characteristic leaching procedure and Microtox bioassay. While no toxic leachate was generated from the FGDG treatment, some toxic elements in the soil were removed through absorption reactions. Test results for carbon sequestration based on unsaturated soil column experiments suggest that the application of FGDG for soil treatment holds promise of less microbial CO (sub 2) emission from soil. The net benefits of carbon sequestration from the FGDG treatment were calculated as 87 and 621 g C/m (super 2) /m of infiltrated water, for the 1 % calcite-added column and 3 % calcite-added columns, respectively. The presented test results show that the FGDG treatment for soil carbon sequestration holds a promise when it is applied to slightly alkaline soils. Copyright 2016 Springer-Verlag Berlin Heidelberg JF - Environmental Earth Sciences AU - Han, Young-Soo AU - Tokunaga, Tetsu K AU - Salve, Rohit AU - Chon, Chul-Min Y1 - 2016/08// PY - 2016 DA - August 2016 EP - Article 1148 PB - Springer, Berlin VL - 75 IS - 15 SN - 1866-6280, 1866-6280 KW - United States KW - power plants KW - remediation KW - flue gas KW - carbon dioxide KW - California KW - mitigation KW - gypsum KW - leachate KW - alkalinity KW - discharge KW - soils KW - toxic materials KW - experimental studies KW - carbon sequestration KW - San Joaquin Valley KW - sulfates KW - desulfurization KW - soil treatment KW - pollution KW - bioassays KW - Merced County California KW - greenhouse gases KW - waste disposal KW - soil management KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840617787?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Earth+Sciences&rft.atitle=Environmental+feasibility+of+soil+amendment+with+flue+gas+desulfurization+gypsum+%28FGDG%29+for+terrestrial+carbon+sequestration&rft.au=Han%2C+Young-Soo%3BTokunaga%2C+Tetsu+K%3BSalve%2C+Rohit%3BChon%2C+Chul-Min&rft.aulast=Han&rft.aufirst=Young-Soo&rft.date=2016-08-01&rft.volume=75&rft.issue=15&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Environmental+Earth+Sciences&rft.issn=18666280&rft_id=info:doi/10.1007%2Fs12665-016-5966-x L2 - http://www.springerlink.com/content/1866-6280 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 31 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - alkalinity; bioassays; California; carbon dioxide; carbon sequestration; desulfurization; discharge; experimental studies; flue gas; greenhouse gases; gypsum; leachate; Merced County California; mitigation; pollution; power plants; remediation; San Joaquin Valley; soil management; soil treatment; soils; sulfates; toxic materials; United States; waste disposal DO - http://dx.doi.org/10.1007/s12665-016-5966-x ER - TY - JOUR T1 - Adsorption and desorption of arsenate on sandy sediments from contaminated and uncontaminated saturated zones; kinetic and equilibrium modeling AN - 1832650814; 779363-32 AB - Application of empirical models to adsorption of contaminants on natural heterogeneous sorbents is often challenging due to the uncertainty associated with fitting experimental data and determining adjustable parameters. Sediment samples from contaminated and uncontaminated portions of a study site in Maine, USA were collected and investigated for adsorption of arsenate [As(V)]. Two kinetic models were used to describe the results of single solute batch adsorption experiments. Piecewise linear regression of data linearized to fit pseudo-first order kinetic model resulted in two distinct rates and a cutoff time point of 14-19 h delineating the biphasic behavior of solute adsorption. During the initial rapid adsorption stage, an average of 60-80% of the total adsorption took place. Pseudo-second order kinetic models provided the best fit to the experimental data (R (super 2) > 0.99) and were capable of describing the adsorption over the entire range of experiments. Both Langmuir and Freundlich isotherms provided reasonable fits to the adsorption data at equilibrium. Langmuir-derived maximum adsorption capacity (S (sub t) ) of the studied sediments ranged between 29 and 97 mg/kg increasing from contaminated to uncontaminated sites. Solid phase As content of the sediments ranged from 3.8 to 10 mg/kg and the As/Fe ratios were highest in the amorphous phase. High-pH desorption experiments resulted in a greater percentage of solid phase As released into solution from experimentally-loaded sediments than from the unaltered samples suggesting that As(V) adsorption takes place on different reversible and irreversible surface sites. JF - Environmental Pollution (1987) AU - Hafeznezami, Saeedreza AU - Zimmer-Faust, Amity G AU - Dunne, Aislinn AU - Tran, Tiffany AU - Yang, Chao AU - Lam, Jacquelyn R AU - Reynolds, Matthew D AU - Davis, James A AU - Jay, Jennifer A Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 290 EP - 301 PB - Elsevier, Barking VL - 215 SN - 0269-7491, 0269-7491 KW - United States KW - experimental studies KW - desorption KW - pollutants KW - arsenic KW - pollution KW - adsorption KW - equilibrium KW - arsenates KW - isotherms KW - soil pollution KW - metals KW - sequential extraction KW - sediments KW - Maine KW - kinetics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832650814?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Pollution+%281987%29&rft.atitle=Adsorption+and+desorption+of+arsenate+on+sandy+sediments+from+contaminated+and+uncontaminated+saturated+zones%3B+kinetic+and+equilibrium+modeling&rft.au=Hafeznezami%2C+Saeedreza%3BZimmer-Faust%2C+Amity+G%3BDunne%2C+Aislinn%3BTran%2C+Tiffany%3BYang%2C+Chao%3BLam%2C+Jacquelyn+R%3BReynolds%2C+Matthew+D%3BDavis%2C+James+A%3BJay%2C+Jennifer+A&rft.aulast=Hafeznezami&rft.aufirst=Saeedreza&rft.date=2016-08-01&rft.volume=215&rft.issue=&rft.spage=290&rft.isbn=&rft.btitle=&rft.title=Environmental+Pollution+%281987%29&rft.issn=02697491&rft_id=info:doi/10.1016%2Fj.envpol.2016.05.029 L2 - http://www.sciencedirect.com/science/journal/02697491 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Number of references - 49 N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - adsorption; arsenates; arsenic; desorption; equilibrium; experimental studies; isotherms; kinetics; Maine; metals; pollutants; pollution; sediments; sequential extraction; soil pollution; United States DO - http://dx.doi.org/10.1016/j.envpol.2016.05.029 ER - TY - JOUR T1 - CO2 enabled process integration for the production of cellulosic ethanol using bionic liquids AN - 1827891285; PQ0003683744 AB - There is a clear and unmet need for a robust and affordable biomass conversion technology that can process a wide range of biomass feedstocks and produce high yields of fermentable sugars and biofuels with minimal intervention between unit operations. The lower microbial toxicity of recently-developed renewable ionic liquids (ILs), or bionic liquids (BILs), helps overcome the challenges associated with the integration of pretreatment with enzymatic saccharification and microbial fermentation. However, the most effective BILs known to date for biomass pretreatment form extremely basic pH solutions in the presence of water, and therefore require neutralization before the pH range is acceptable for the enzymes and microbes used to complete the biomass conversion process. Neutralization using acids creates unwanted secondary effects that are problematic for efficient and cost-effective biorefinery operations using either continuous or batch modes. We demonstrate a novel approach that addresses these challenges through the use of gaseous carbon dioxide to reversibly control the pH mismatch. This approach enables the realization of an integrated biomass conversion process that eliminates the need for intermediate washing and/or separation steps. A preliminary technoeconomic analysis indicates that this integrated approach could reduce production costs by 50-65% compared to previous IL biomass conversion methods studied. JF - Energy & Environmental Science AU - Sun, Jian AU - Konda, NVSNMurthy AU - Shi, Jian AU - Parthasarathi, Ramakrishnan AU - Dutta, Tanmoy AU - Xu, Feng AU - Scown, Corinne D AU - Simmons, Blake A AU - Singh, Seema AD - Deconstruction Division; Joint BioEnergy Institute; Emeryville; CA; USA Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 2822 EP - 2834 PB - Royal Society of Chemistry, c/o Springer-Verlag New York Inc. Secaucus New Jersey 07096 2485 United States VL - 9 IS - 9 SN - 1754-5692, 1754-5692 KW - Biotechnology and Bioengineering Abstracts; Environment Abstracts KW - Fuel technology KW - Fermentation KW - Intervention KW - Integration KW - Economics KW - Neutralization KW - pH effects KW - pH KW - Ethanol KW - Sugar KW - Enzymes KW - Production costs KW - Toxicity KW - Biomass KW - Acids KW - Energy KW - Carbon dioxide KW - Biofuels KW - W 30945:Fermentation & Cell Culture KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1827891285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%26+Environmental+Science&rft.atitle=CO2+enabled+process+integration+for+the+production+of+cellulosic+ethanol+using+bionic+liquids&rft.au=Sun%2C+Jian%3BKonda%2C+NVSNMurthy%3BShi%2C+Jian%3BParthasarathi%2C+Ramakrishnan%3BDutta%2C+Tanmoy%3BXu%2C+Feng%3BScown%2C+Corinne+D%3BSimmons%2C+Blake+A%3BSingh%2C+Seema&rft.aulast=Sun&rft.aufirst=Jian&rft.date=2016-08-01&rft.volume=9&rft.issue=9&rft.spage=2822&rft.isbn=&rft.btitle=&rft.title=Energy+%26+Environmental+Science&rft.issn=17545692&rft_id=info:doi/10.1039%2Fc6ee00913a LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-10-01 N1 - Number of references - 60 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Sugar; Integration; Fermentation; Energy; Acids; Enzymes; Toxicity; Carbon dioxide; Biomass; pH effects; Biofuels; Ethanol; Fuel technology; Intervention; Production costs; Economics; Neutralization; pH DO - http://dx.doi.org/10.1039/c6ee00913a ER - TY - JOUR T1 - High-resolution phylogenetic microbial community profiling AN - 1811879606; PQ0003512806 AB - Over the past decade, high-throughput short-read 16S rRNA gene amplicon sequencing has eclipsed clone-dependent long-read Sanger sequencing for microbial community profiling. The transition to new technologies has provided more quantitative information at the expense of taxonomic resolution with implications for inferring metabolic traits in various ecosystems. We applied single-molecule real-time sequencing for microbial community profiling, generating full-length 16S rRNA gene sequences at high throughput, which we propose to name PhyloTags. We benchmarked and validated this approach using a defined microbial community. When further applied to samples from the water column of meromictic Sakinaw Lake, we show that while community structures at the phylum level are comparable between PhyloTags and Illumina V4 16S rRNA gene sequences (iTags), variance increases with community complexity at greater water depths. PhyloTags moreover allowed less ambiguous classification. Last, a platform-independent comparison of PhyloTags and in silico generated partial 16S rRNA gene sequences demonstrated significant differences in community structure and phylogenetic resolution across multiple taxonomic levels, including a severe underestimation in the abundance of specific microbial genera involved in nitrogen and methane cycling across the Lake's water column. Thus, PhyloTags provide a reliable adjunct or alternative to cost-effective iTags, enabling more accurate phylogenetic resolution of microbial communities and predictions on their metabolic potential. JF - ISME Journal AU - Singer, Esther AU - Bushnell, Brian AU - Coleman-Derr, Devin AU - Bowman, Brett AU - Bowers, Robert M AU - Levy, Asaf AU - Gies, Esther A AU - Cheng, Jan-Fang AU - Copeland, Alex AU - Klenk, Hans-Peter AU - Hallam, Steven J AU - Hugenholtz, Philip AU - Tringe, Susannah G AU - Woyke, Tanja AD - US Department of Energy, Joint Genome Institute, Walnut Creek, CA, USA Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 2020 EP - 2032 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 10 IS - 8 SN - 1751-7362, 1751-7362 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Environment Abstracts; Ecology Abstracts KW - Water depth KW - Prediction KW - Phylogeny KW - Methane KW - Ecosystems KW - Abundance KW - Microbial activity KW - Water column KW - Lakes KW - Classification KW - Community structure KW - Economics KW - Taxonomy KW - rRNA 16S KW - Technology KW - Nitrogen KW - J 02310:Genetics & Taxonomy KW - D 04040:Ecosystem and Ecology Studies KW - A 01320:Microbial Degradation KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1811879606?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ISME+Journal&rft.atitle=High-resolution+phylogenetic+microbial+community+profiling&rft.au=Singer%2C+Esther%3BBushnell%2C+Brian%3BColeman-Derr%2C+Devin%3BBowman%2C+Brett%3BBowers%2C+Robert+M%3BLevy%2C+Asaf%3BGies%2C+Esther+A%3BCheng%2C+Jan-Fang%3BCopeland%2C+Alex%3BKlenk%2C+Hans-Peter%3BHallam%2C+Steven+J%3BHugenholtz%2C+Philip%3BTringe%2C+Susannah+G%3BWoyke%2C+Tanja&rft.aulast=Singer&rft.aufirst=Esther&rft.date=2016-08-01&rft.volume=10&rft.issue=8&rft.spage=2020&rft.isbn=&rft.btitle=&rft.title=ISME+Journal&rft.issn=17517362&rft_id=info:doi/10.1038%2Fismej.2015.249 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-10-12 N1 - SubjectsTermNotLitGenreText - Phylogeny; Methane; Lakes; Classification; Community structure; Abundance; rRNA 16S; Water column; Nitrogen; Prediction; Water depth; Ecosystems; Microbial activity; Economics; Taxonomy; Technology DO - http://dx.doi.org/10.1038/ismej.2015.249 ER - TY - JOUR T1 - Microbial Metagenomics Reveals Climate-Relevant Subsurface Biogeochemical Processes AN - 1811874110; PQ0003497357 AB - Microorganisms play key roles in terrestrial system processes, including the turnover of natural organic carbon, such as leaf litter and woody debris that accumulate in soils and subsurface sediments. What has emerged from a series of recent DNA sequencing-based studies is recognition of the enormous variety of little known and previously unknown microorganisms that mediate recycling of these vast stores of buried carbon in subsoil compartments of the terrestrial system. More importantly, the genome resolution achieved in these studies has enabled association of specific members of these microbial communities with carbon compound transformations and other linked biogeochemical processes-such as the nitrogen cycle-that can impact the quality of groundwater, surface water, and atmospheric trace gas concentrations. The emerging view also emphasizes the importance of organism interactions through exchange of metabolic byproducts (e.g., within the carbon, nitrogen, and sulfur cycles) and via symbioses since many novel organisms exhibit restricted metabolic capabilities and an associated extremely small cell size. New, genome-resolved information reshapes our view of subsurface microbial communities and provides critical new inputs for advanced reactive transport models. These inputs are needed for accurate prediction of feedbacks in watershed biogeochemical functioning and their influence on the climate via the fluxes of greenhouse gases, CO2, CH4, and N2O. JF - Trends in Microbiology AU - Long, Philip E AU - Williams, Kenneth H AU - Hubbard, Susan S AU - Banfield, Jillian F AD - Earth Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 600 EP - 610 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 24 IS - 8 SN - 0966-842X, 0966-842X KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - metagenome KW - subsurface biogeochemistry KW - reaction pathway KW - greenhouse gases KW - Sulfur KW - Transformation KW - Genomes KW - Surface water KW - Climate KW - Recycling KW - Watersheds KW - Sediments KW - Soil KW - Leaf litter KW - Carbon KW - Reviews KW - Cell size KW - Microorganisms KW - Ground water KW - Feedback KW - Carbon dioxide KW - Greenhouse gases KW - Nitrogen KW - A 01400:Soil Microbes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1811874110?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Trends+in+Microbiology&rft.atitle=Microbial+Metagenomics+Reveals+Climate-Relevant+Subsurface+Biogeochemical+Processes&rft.au=Long%2C+Philip+E%3BWilliams%2C+Kenneth+H%3BHubbard%2C+Susan+S%3BBanfield%2C+Jillian+F&rft.aulast=Long&rft.aufirst=Philip&rft.date=2016-08-01&rft.volume=24&rft.issue=8&rft.spage=600&rft.isbn=&rft.btitle=&rft.title=Trends+in+Microbiology&rft.issn=0966842X&rft_id=info:doi/10.1016%2Fj.tim.2016.04.006 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-09-01 N1 - SubjectsTermNotLitGenreText - Genomes; Transformation; Sulfur; Surface water; Climate; Watersheds; Recycling; Sediments; Soil; Leaf litter; Carbon; Reviews; Cell size; Ground water; Microorganisms; Feedback; Greenhouse gases; Carbon dioxide; Nitrogen DO - http://dx.doi.org/10.1016/j.tim.2016.04.006 ER - TY - JOUR T1 - Do classroom ventilation rates in California elementary schools influence standardized test scores? Results from a prospective study AN - 1808715114; PQ0003484746 AB - Limited evidence has associated lower ventilation rates (VRs) in schools with reduced student learning or achievement. We analyzed longitudinal data collected over two school years from 150 classrooms in 28 schools within three California school districts. We estimated daily classroom VRs from real-time indoor carbon dioxide measured by web-connected sensors. School districts provided individual-level scores on standard tests in Math and English, and classroom-level demographic data. Analyses assessing learning effects used two VR metrics: average VRs for 30 days prior to tests, and proportion of prior daily VRs above specified thresholds during the year. We estimated relationships between scores and VR metrics in multivariate models with generalized estimating equations. All school districts had median school-year VRs below the California VR standard. Most models showed some positive associations of VRs with test scores; however, estimates varied in magnitude and few 95% confidence intervals excluded the null. Combined-district models estimated statistically significant increases of 0.6 points (P = 0.01) on English tests for each 10% increase in prior 30-day VRs. Estimated increases in Math were of similar magnitude but not statistically significant. Findings suggest potential small positive associations between classroom VRs and learning. JF - Indoor Air AU - Mendell, MJ AU - Eliseeva, E A AU - Davies, M M AU - Lobscheid, A AD - Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 546 EP - 557 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 26 IS - 4 SN - 0905-6947, 0905-6947 KW - Environment Abstracts KW - Demography KW - Schools KW - Ventilation KW - Sensors KW - INE, USA, California KW - Standards KW - Indoor environments KW - Carbon dioxide KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808715114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=99th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2014%29&rft.atitle=Genome+informed+trait-based+models+for+improved+prediction+of+microbial+dynamics+and+biogeochemical+rates&rft.au=Brodie%2C+Eoin%3BKing%2C+Eric%3BTang%2C+Jinyun%3BCheng%2C+Yiwei%3BKaraoz%2C+Ulas%3BMolins%2C+Sergi%3BRiley%2C+William%3BBouskill%2C+Nicholas&rft.aulast=Brodie&rft.aufirst=Eoin&rft.date=2014-08-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=99th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2014%29&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-09-01 N1 - SubjectsTermNotLitGenreText - Demography; Schools; Sensors; Ventilation; Standards; Carbon dioxide; Indoor environments; INE, USA, California DO - http://dx.doi.org/10.1111/ina.12241 ER - TY - JOUR T1 - Higher thermoelectric performance of Zintl phases (Eu0.5Yb0.5)1-xCaxMg2Bi2 by band engineering and strain fluctuation. AN - 1806441028; 27385824 AB - Complex Zintl phases, especially antimony (Sb)-based YbZn0.4Cd1.6Sb2 with figure-of-merit (ZT) of ∼1.2 at 700 K, are good candidates as thermoelectric materials because of their intrinsic "electron-crystal, phonon-glass" nature. Here, we report the rarely studied p-type bismuth (Bi)-based Zintl phases (Ca,Yb,Eu)Mg2Bi2 with a record thermoelectric performance. Phase-pure EuMg2Bi2 is successfully prepared with suppressed bipolar effect to reach ZT ∼ 1. Further partial substitution of Eu by Ca and Yb enhanced ZT to ∼1.3 for Eu0.2Yb0.2Ca0.6Mg2Bi2 at 873 K. Density-functional theory (DFT) simulation indicates the alloying has no effect on the valence band, but does affect the conduction band. Such band engineering results in good p-type thermoelectric properties with high carrier mobility. Using transmission electron microscopy, various types of strains are observed and are believed to be due to atomic mass and size fluctuations. Point defects, strain, dislocations, and nanostructures jointly contribute to phonon scattering, confirmed by the semiclassical theoretical calculations based on a modified Debye-Callaway model of lattice thermal conductivity. This work indicates Bi-based (Ca,Yb,Eu)Mg2Bi2 is better than the Sb-based Zintl phases. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Shuai, Jing AU - Geng, Huiyuan AU - Lan, Yucheng AU - Zhu, Zhuan AU - Wang, Chao AU - Liu, Zihang AU - Bao, Jiming AU - Chu, Ching-Wu AU - Sui, Jiehe AU - Ren, Zhifeng AD - Department of Physics and Texas Center for Superconductivity, University of Houston, Houston, TX 77204; ; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China; ; Department of Physics and Engineering Physics, Morgan State University, Baltimore, MD 21251; ; Department of Mechanical Engineering, University of Houston, Houston, TX 77204; ; State Key Lab of Electronic Thin Film and Integrated Device, University of Electric Science and Technology of China, Chengdu 611731, China; ; Department of Physics and Texas Center for Superconductivity, University of Houston, Houston, TX 77204; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China; ; Department of Physics and Texas Center for Superconductivity, University of Houston, Houston, TX 77204; Lawrence Berkeley National Laboratory, Berkeley, CA 94720 cwchu@uh.edu suijiehe@hit.edu.cn zren@uh.edu. ; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China; cwchu@uh.edu suijiehe@hit.edu.cn zren@uh.edu. ; Department of Physics and Texas Center for Superconductivity, University of Houston, Houston, TX 77204; cwchu@uh.edu suijiehe@hit.edu.cn zren@uh.edu. Y1 - 2016/07/19/ PY - 2016 DA - 2016 Jul 19 SP - E4125 EP - E4132 VL - 113 IS - 29 KW - Index Medicus KW - band engineering KW - strain-field fluctuation KW - Bi-based Zintl phases KW - thermoelectric properties UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1806441028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Higher+thermoelectric+performance+of+Zintl+phases+%28Eu0.5Yb0.5%291-xCaxMg2Bi2+by+band+engineering+and+strain+fluctuation.&rft.au=Shuai%2C+Jing%3BGeng%2C+Huiyuan%3BLan%2C+Yucheng%3BZhu%2C+Zhuan%3BWang%2C+Chao%3BLiu%2C+Zihang%3BBao%2C+Jiming%3BChu%2C+Ching-Wu%3BSui%2C+Jiehe%3BRen%2C+Zhifeng&rft.aulast=Shuai&rft.aufirst=Jing&rft.date=2016-07-19&rft.volume=113&rft.issue=29&rft.spage=E4125&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=1091-6490&rft_id=info:doi/10.1073%2Fpnas.1608794113 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-07-21 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1073/pnas.1608794113 ER - TY - JOUR T1 - Determination of mineral dissolution regimes using flow-through time-resolved analysis (FT-TRA) and numerical simulation AN - 1803774116; 2016-062729 AB - Flow-through time resolved analysis (FT-TRA) involves subjecting small mineral samples (< 10 mg) inserted in a miniature flow-through cell (50 mu L) to controlled flows of eluent analyzed on-line by ICP-MS. In this study, FT-TRA is used to empirically determine the dissolution regimes for the two well-studied minerals forsterite and calcite, representing minerals with relatively slow and fast dissolution kinetics. A proportional increase in steady-state effluent [Mg, Si] concentrations with increasing flow-through cell eluent residence times confirms a dominantly surface-controlled dissolution regime for a powdered forsterite sample at pH 2.3, implying that transport limitations are negligible. In contrast, the relationship between flow rates and dissolution rates for single grain calcite samples at pH 2.3-4 reveals that transport limitations affect the rate of calcite dissolution. To provide a quantitative and process-based assessment of the effect of diffusive transport limitations, simulations of the calcite experiments were performed with a high resolution, pore-scale model that considers the geometry of the calcite grain and the FT-TRA flow-through reactor. The pore-scale model reproduces the observed effluent [Ca] concentrations for all experimental conditions using a single set of surface kinetic parameters, by accounting for the formation of a diffusive boundary layer (DBL) that varies in thickness as a function of flow rates. These results demonstrate that combining FT-TRA with pore-scale modeling makes it possible to obtain unprecedented insights not achievable by either method separately, including quantification of DBL thicknesses and the determination of transport controls as a function of pH, flow velocity and residence times. Abstract Copyright (2016) Elsevier, B.V. JF - Chemical Geology AU - De Baere, Bart AU - Molins, Sergi AU - Mayer, K Ulrich AU - Francois, Roger Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 1 EP - 12 PB - Elsevier, Amsterdam VL - 430 SN - 0009-2541, 0009-2541 KW - solute transport KW - silicates KW - methods KW - magnesium KW - mass spectra KW - olivine group KW - simulation KW - silicon KW - transport KW - orthosilicates KW - spectra KW - kinetics KW - pH KW - alkaline earth metals KW - experimental studies KW - chemical analysis KW - electron microscopy data KW - solubility KW - flow through-time resolved analysis KW - forsterite KW - calcite KW - nesosilicates KW - models KW - ICP mass spectra KW - metals KW - mathematical methods KW - crystal chemistry KW - carbonates KW - SEM data KW - 01B:Mineralogy of silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774116?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Determination+of+mineral+dissolution+regimes+using+flow-through+time-resolved+analysis+%28FT-TRA%29+and+numerical+simulation&rft.au=De+Baere%2C+Bart%3BMolins%2C+Sergi%3BMayer%2C+K+Ulrich%3BFrancois%2C+Roger&rft.aulast=De+Baere&rft.aufirst=Bart&rft.date=2016-07-15&rft.volume=430&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2Fj.chemgeo.2016.03.014 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 52 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-07-14 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - alkaline earth metals; calcite; carbonates; chemical analysis; crystal chemistry; electron microscopy data; experimental studies; flow through-time resolved analysis; forsterite; ICP mass spectra; kinetics; magnesium; mass spectra; mathematical methods; metals; methods; models; nesosilicates; olivine group; orthosilicates; pH; SEM data; silicates; silicon; simulation; solubility; solute transport; spectra; transport DO - http://dx.doi.org/10.1016/j.chemgeo.2016.03.014 ER - TY - GEN T1 - Chemical 'Sponges' Could Make Chemo Safer AN - 1802984714 JF - Breaking Energy AU - Glenn Roberts Jr | Berkeley Lab Y1 - 2016/07/11/ PY - 2016 DA - 2016 Jul 11 CY - New York PB - SyndiGate Media Inc KW - Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1802984714?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aabitrade&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Breaking+Energy&rft.atitle=Chemical+%27Sponges%27+Could+Make+Chemo+Safer&rft.au=Glenn+Roberts+Jr+%3B+Berkeley+Lab&rft.aulast=Glenn+Roberts+Jr+%7C+Berkeley+Lab&rft.aufirst=&rft.date=2016-07-11&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Breaking+Energy&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright © 2016 Breaking Media, Inc. All rights reserved. Provided by SyndiGate Media Inc. (Syndigate.info). N1 - Last updated - 2016-07-12 ER - TY - JOUR T1 - Reactive Transport Model of Sulfur Cycling as Impacted by Perchlorate and Nitrate Treatments. AN - 1802473143; 27267666 AB - Microbial souring in oil reservoirs produces toxic, corrosive hydrogen sulfide through microbial sulfate reduction, often accompanying (sea)water flooding during secondary oil recovery. With data from column experiments as constraints, we developed the first reactive-transport model of a new candidate inhibitor, perchlorate, and compared it with the commonly used inhibitor, nitrate. Our model provided a good fit to the data, which suggest that perchlorate is more effective than nitrate on a per mole of inhibitor basis. Critically, we used our model to gain insight into the underlying competing mechanisms controlling the action of each inhibitor. This analysis suggested that competition by heterotrophic perchlorate reducers and direct inhibition by nitrite produced from heterotrophic nitrate reduction were the most important mechanisms for the perchlorate and nitrate treatments, respectively, in the modeled column experiments. This work demonstrates modeling to be a powerful tool for increasing and testing our understanding of reservoir-souring generation, prevention, and remediation processes, allowing us to incorporate insights derived from laboratory experiments into a framework that can potentially be used to assess risk and design optimal treatment schemes. JF - Environmental science & technology AU - Cheng, Yiwei AU - Hubbard, Christopher G AU - Li, Li AU - Bouskill, Nicholas AU - Molins, Sergi AU - Zheng, Liange AU - Sonnenthal, Eric AU - Conrad, Mark E AU - Engelbrektson, Anna AU - Coates, John D AU - Ajo-Franklin, Jonathan B AD - Lawrence Berkeley National Laboratory , Berkeley, California, 94720 United States. ; Pennsylvania State University , University Park, Pennsylvania, 16802 United States. ; Department of Plant and Microbial Biology, University of California , Berkeley, California, 94720 United States. Y1 - 2016/07/05/ PY - 2016 DA - 2016 Jul 05 SP - 7010 EP - 7018 VL - 50 IS - 13 KW - Index Medicus UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1802473143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Reactive+Transport+Model+of+Sulfur+Cycling+as+Impacted+by+Perchlorate+and+Nitrate+Treatments.&rft.au=Cheng%2C+Yiwei%3BHubbard%2C+Christopher+G%3BLi%2C+Li%3BBouskill%2C+Nicholas%3BMolins%2C+Sergi%3BZheng%2C+Liange%3BSonnenthal%2C+Eric%3BConrad%2C+Mark+E%3BEngelbrektson%2C+Anna%3BCoates%2C+John+D%3BAjo-Franklin%2C+Jonathan+B&rft.aulast=Cheng&rft.aufirst=Yiwei&rft.date=2016-07-05&rft.volume=50&rft.issue=13&rft.spage=7010&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=1520-5851&rft_id=info:doi/10.1002%2F2013WR014283 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-07-05 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1021/acs.est.6b00081 ER - TY - JOUR T1 - Improving Budyko curve-based estimates of long-term water partitioning using hydrologic signatures from GRACE AN - 1844923589; 2016-101583 AB - The Budyko hypothesis provides a first-order estimate of water partitioning into runoff (Q) and evapotranspiration (E). Observations, however, often show significant departures from the Budyko curve; moreover, past improvements to Budyko curve tend to lose predictive power when migrated between regions or to small scales. Here to estimate departures from the Budyko curve, we use hydrologic signatures extracted from Gravity Recovery And Climate Experiment (GRACE) terrestrial water storage anomalies. The signatures include GRACE amplitude as a fraction of precipitation (A/P), interannual variability, and 1-month lag autocorrelation. We created a group of linear models embodying two alternate hypotheses that departures can be predicted by (a) Taylor series expansion based on the deviation of physical characteristics (seasonality, snow fraction, and vegetation index) from reference conditions and (b) surrogate indicators covarying with E, e.g., A/P. These models are fitted using a mesoscale USA data set (HUC4) and then evaluated using world data sets and USA basins 1000 km (super 2) and, according to comparison with other global data sets, is suitable for data fusion purposes, with GRACE error as estimates of uncertainty. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Water Resources Research AU - Fang, Kuai AU - Shen, Chaopeng AU - Fisher, Joshua B AU - Niu, Jie Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 5537 EP - 5554 PB - American Geophysical Union, Washington, DC VL - 52 IS - 7 SN - 0043-1397, 0043-1397 KW - hydrology KW - water storage KW - annual variations KW - numerical analysis KW - global KW - statistical analysis KW - GRACE KW - atmospheric precipitation KW - satellite methods KW - evapotranspiration KW - mathematical methods KW - autocorrelation KW - Budyko curve KW - climate KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844923589?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Improving+Budyko+curve-based+estimates+of+long-term+water+partitioning+using+hydrologic+signatures+from+GRACE&rft.au=Fang%2C+Kuai%3BShen%2C+Chaopeng%3BFisher%2C+Joshua+B%3BNiu%2C+Jie&rft.aulast=Fang&rft.aufirst=Kuai&rft.date=2016-07-01&rft.volume=52&rft.issue=7&rft.spage=5537&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2016WR018748 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 87 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-12-01 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - annual variations; atmospheric precipitation; autocorrelation; Budyko curve; climate; evapotranspiration; global; GRACE; hydrology; mathematical methods; numerical analysis; satellite methods; statistical analysis; water storage DO - http://dx.doi.org/10.1002/2016WR018748 ER - TY - JOUR T1 - Variability in the sensitivity among model simulations of permafrost and carbon dynamics in the permafrost region between 1960 and 2009 AN - 1840622099; 2016-096391 AB - A significant portion of the large amount of carbon (C) currently stored in soils of the permafrost region in the Northern Hemisphere has the potential to be emitted as the greenhouse gases CO (sub 2) and CH (sub 4) under a warmer climate. In this study we evaluated the variability in the sensitivity of permafrost and C in recent decades among land surface model simulations over the permafrost region between 1960 and 2009. The 15 model simulations all predict a loss of near-surface permafrost (within 3 m) area over the region, but there are large differences in the magnitude of the simulated rates of loss among the models (0.2 to 58.8 X 10 (super 3) km (super 2) yr (super -1) ). Sensitivity simulations indicated that changes in air temperature largely explained changes in permafrost area, although interactions among changes in other environmental variables also played a role. All of the models indicate that both vegetation and soil C storage together have increased by 156 to 954 Tg C yr (super -1) between 1960 and 2009 over the permafrost region even though model analyses indicate that warming alone would decrease soil C storage. Increases in gross primary production (GPP) largely explain the simulated increases in vegetation and soil C. The sensitivity of GPP to increases in atmospheric CO (sub 2) was the dominant cause of increases in GPP across the models, but comparison of simulated GPP trends across the 1982-2009 period with that of a global GPP data set indicates that all of the models overestimate the trend in GPP. Disturbance also appears to be an important factor affecting C storage, as models that consider disturbance had lower increases in C storage than models that did not consider disturbance. To improve the modeling of C in the permafrost region, there is the need for the modeling community to standardize structural representation of permafrost and carbon dynamics among models that are used to evaluate the permafrost C feedback and for the modeling and observational communities to jointly develop data sets and methodologies to more effectively benchmark models. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Global Biogeochemical Cycles AU - McGuire, A David AU - Koven, Charles AU - Lawrence, David M AU - Clein, Joy S AU - Xia, Jiangyang AU - Beer, Christian AU - Burke, Eleanor AU - Chen, Guangsheng AU - Chen, Xiaodong AU - Delire, Christine AU - Jafarov, Elchin AU - MacDougall, Andrew H AU - Marchenko, Sergey AU - Nicolsky, Dmitry AU - Peng, Shushi AU - Rinke, Annette AU - Saito, Kazuyuki AU - Zhang, Wenxin AU - Alkama, Ramdane AU - Bohn, Theodore J AU - Ciais, Philippe AU - Decharme, Bertrand AU - Ekici, Altug AU - Gouttevin, Isabelle AU - Hajima, Tomohiro AU - Hayes, Daniel J AU - Ji, Duoying AU - Krinner, Gerhard AU - Lettenmaier, Dennis P AU - Luo, Yiqi AU - Miller, Paul A AU - Moore, John C AU - Romanovsky, Vladimir AU - Schaedel, Christina AU - Schaefer, Kevin AU - Schuur, Edward A G AU - Smith, Benjamin AU - Sueyoshi, Tetsuo AU - Zhuang, Qianlai Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 1015 EP - 1037 PB - American Geophysical Union, Washington, DC VL - 30 IS - 7 SN - 0886-6236, 0886-6236 KW - decadal variations KW - permafrost KW - data processing KW - aliphatic hydrocarbons KW - global change KW - temperature KW - carbon dioxide KW - dynamics KW - sensitivity analysis KW - carbon KW - digital simulation KW - global warming KW - soils KW - cryosphere KW - methane KW - Arctic region KW - alkanes KW - thawing KW - geochemical cycle KW - organic compounds KW - hydrocarbons KW - air KW - greenhouse gases KW - carbon cycle KW - frozen ground KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840622099?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+Biogeochemical+Cycles&rft.atitle=Variability+in+the+sensitivity+among+model+simulations+of+permafrost+and+carbon+dynamics+in+the+permafrost+region+between+1960+and+2009&rft.au=McGuire%2C+A+David%3BKoven%2C+Charles%3BLawrence%2C+David+M%3BClein%2C+Joy+S%3BXia%2C+Jiangyang%3BBeer%2C+Christian%3BBurke%2C+Eleanor%3BChen%2C+Guangsheng%3BChen%2C+Xiaodong%3BDelire%2C+Christine%3BJafarov%2C+Elchin%3BMacDougall%2C+Andrew+H%3BMarchenko%2C+Sergey%3BNicolsky%2C+Dmitry%3BPeng%2C+Shushi%3BRinke%2C+Annette%3BSaito%2C+Kazuyuki%3BZhang%2C+Wenxin%3BAlkama%2C+Ramdane%3BBohn%2C+Theodore+J%3BCiais%2C+Philippe%3BDecharme%2C+Bertrand%3BEkici%2C+Altug%3BGouttevin%2C+Isabelle%3BHajima%2C+Tomohiro%3BHayes%2C+Daniel+J%3BJi%2C+Duoying%3BKrinner%2C+Gerhard%3BLettenmaier%2C+Dennis+P%3BLuo%2C+Yiqi%3BMiller%2C+Paul+A%3BMoore%2C+John+C%3BRomanovsky%2C+Vladimir%3BSchaedel%2C+Christina%3BSchaefer%2C+Kevin%3BSchuur%2C+Edward+A+G%3BSmith%2C+Benjamin%3BSueyoshi%2C+Tetsuo%3BZhuang%2C+Qianlai&rft.aulast=McGuire&rft.aufirst=A&rft.date=2016-07-01&rft.volume=30&rft.issue=7&rft.spage=1015&rft.isbn=&rft.btitle=&rft.title=Global+Biogeochemical+Cycles&rft.issn=08866236&rft_id=info:doi/10.1002%2F2016GB005405 L2 - http://www.agu.org/journals/gb/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 121 N1 - PubXState - DC N1 - Document feature - illus. incl. 9 tables N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - air; aliphatic hydrocarbons; alkanes; Arctic region; carbon; carbon cycle; carbon dioxide; cryosphere; data processing; decadal variations; digital simulation; dynamics; frozen ground; geochemical cycle; global change; global warming; greenhouse gases; hydrocarbons; methane; organic compounds; permafrost; sensitivity analysis; soils; temperature; thawing DO - http://dx.doi.org/10.1002/2016GB005405 ER - TY - JOUR T1 - Exposure and analysis of microparticles embedded in silica aerogel keystones using NF (sub 3) -mediated electron beam-induced etching and energy-dispersive X-ray spectroscopy AN - 1819895145; 2016-079109 AB - In 2006, NASA's Stardust spacecraft delivered to Earth dust particles collected from the coma of comet 81P/Wild 2, with the goal of furthering the understanding of solar system formation. Stardust cometary samples were collected in a low-density, nanoporous silica aerogel making their study technically challenging. This article demonstrates the identification, exposure, and elemental composition analysis of particles analogous to those collected by NASA's Stardust mission using in-situ SEM techniques. Backscattered electron imaging is shown by experimental observation and Monte Carlo simulation to be suitable for locating particles of a range of sizes relevant to Stardust (down to submicron diameters) embedded within silica aerogel. Selective removal of the silica aerogel encapsulating an embedded particle is performed by cryogenic NF (sub 3) -mediated electron beam-induced etching. The porous, low-density nature of the aerogel results in an enhanced etch rate compared with solid material, making it an effective, nonmechanical method for the exposure of particles. After exposure, elemental composition of the particle was analyzed by energy-dispersive X-ray spectroscopy using a high spectral resolution microcalorimeter. Signals from fluorine contamination are shown to correspond to nonremoved silica aerogel and only in residual concentrations. Abstract Copyright The Meteoritical Society, 2016. JF - Meteoritics & Planetary Science AU - Martin, Aiden A AU - Lin, Ting AU - Toth, Milos AU - Westphal, Andrew J AU - Vicenzi, Edward P AU - Beeman, Jeffrey AU - Silver, Eric H Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 1223 EP - 1232 PB - Meteoritical Society, Fayetteville, AR VL - 51 IS - 7 SN - 1086-9379, 1086-9379 KW - methods KW - Stardust Mission KW - halogens KW - electron microscopy data KW - X-ray spectra KW - EDS spectra KW - sample preparation KW - detection KW - comets KW - nitrogen trifluoride KW - fluorine KW - identification KW - Wild 2 Comet KW - aerogel KW - etching KW - spectra KW - chemical composition KW - SEM data KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819895145?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Exposure+and+analysis+of+microparticles+embedded+in+silica+aerogel+keystones+using+NF+%28sub+3%29+-mediated+electron+beam-induced+etching+and+energy-dispersive+X-ray+spectroscopy&rft.au=Martin%2C+Aiden+A%3BLin%2C+Ting%3BToth%2C+Milos%3BWestphal%2C+Andrew+J%3BVicenzi%2C+Edward+P%3BBeeman%2C+Jeffrey%3BSilver%2C+Eric+H&rft.aulast=Martin&rft.aufirst=Aiden&rft.date=2016-07-01&rft.volume=51&rft.issue=7&rft.spage=1223&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12655 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 44 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2016-09-16 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aerogel; chemical composition; comets; detection; EDS spectra; electron microscopy data; etching; fluorine; halogens; identification; methods; nitrogen trifluoride; particles; sample preparation; SEM data; spectra; Stardust Mission; Wild 2 Comet; X-ray spectra DO - http://dx.doi.org/10.1111/maps.12655 ER - TY - JOUR T1 - Separating the effects of phenology and diffuse radiation on gross primary productivity in winter wheat AN - 1815699145; PQ0003582568 AB - Gross primary productivity (GPP) has been reported to increase with the fraction of diffuse solar radiation, for a given total irradiance. The correlation between GPP and diffuse radiation suggests effects of diffuse radiation on canopy light-use efficiency, but potentially confounding effects of vegetation phenology have not been fully explored. We applied several approaches to control for phenology, using 8 years of eddy-covariance measurements of winter wheat in the U.S. Southern Great Plains. The apparent enhancement of daily GPP due to diffuse radiation was reduced from 260% to 75%, after subsampling over the peak growing season or by subtracting a 15 day moving average of GPP, suggesting a role of phenology. The diffuse radiation effect was further reduced to 22% after normalizing GPP by a spectral reflectance index to account for phenological variations in leaf area index LAI and canopy photosynthetic capacity. Canopy photosynthetic capacity covaries with diffuse fraction at a given solar irradiance at this site because both factors are dependent on day of year or solar zenith angle. Using a two-leaf Sun-shaded canopy radiative transfer model, we confirmed that the effects of phenological variations in photosynthetic capacity can appear qualitatively similar to the effects of diffuse radiation on GPP and therefore can be difficult to distinguish using observations. The importance of controlling for phenology when inferring diffuse radiation effects on GPP raises new challenges and opportunities for using radiation measurements to improve carbon cycle models. Key Points * Diffuse radiation and vegetation phenology covary with gross primary productivity (GPP) * Diffuse radiation enhancement of GPP is statistically insignificant after controlling for phenology * Observed enhancement of GPP under diffuse radiation may largely be driven by phenology in crops JF - Journal of Geophysical Research. G. Biogeosciences AU - Williams, Ian N AU - Riley, William J AU - Kueppers, Lara M AU - Biraud, Sebastien C AU - Torn, Margaret S AD - Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA. Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 1903 EP - 1915 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 7 SN - 2169-8953, 2169-8953 KW - Ecology Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Reflectance KW - Irradiance KW - Solar radiation KW - Primary production KW - Crops KW - Models KW - Winter KW - Triticum aestivum KW - Radiation KW - Phenology KW - Canopies KW - Carbon Cycle KW - Modelling KW - Solar Radiation KW - Leaf area KW - Carbon cycle KW - Vegetation KW - Energy flow KW - Radiative transfer KW - Wheat KW - Productivity KW - Q2 09262:Methods and instruments KW - SW 0810:General KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815699145?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research.+G.+Biogeosciences&rft.atitle=Separating+the+effects+of+phenology+and+diffuse+radiation+on+gross+primary+productivity+in+winter+wheat&rft.au=Williams%2C+Ian+N%3BRiley%2C+William+J%3BKueppers%2C+Lara+M%3BBiraud%2C+Sebastien+C%3BTorn%2C+Margaret+S&rft.aulast=Williams&rft.aufirst=Ian&rft.date=2016-07-01&rft.volume=121&rft.issue=7&rft.spage=1903&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+G.+Biogeosciences&rft.issn=21698953&rft_id=info:doi/10.1002%2F2015JG003317 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Energy flow; Reflectance; Phenology; Radiation; Radiative transfer; Canopies; Primary production; Winter; Modelling; Leaf area; Irradiance; Carbon cycle; Vegetation; Solar radiation; Crops; Models; Solar Radiation; Carbon Cycle; Wheat; Productivity; Triticum aestivum DO - http://dx.doi.org/10.1002/2015JG003317 ER - TY - JOUR T1 - Biotechnology and synthetic biology approaches for metabolic engineering of bioenergy crops AN - 1811887772; PQ0003550292 AB - The Green Revolution has fuelled an exponential growth in human population since the mid-20th century. Due to population growth, food and energy demands will soon surpass supply capabilities. To overcome these impending problems, significant improvements in genetic engineering will be needed to complement breeding efforts in order to accelerate the improvement of agronomical traits. The new field of plant synthetic biology has emerged in recent years and is expected to support rapid, precise, and robust engineering of plants. In this review, we present recent advances made in the field of plant synthetic biology, specifically in genome editing, transgene expression regulation, and bioenergy crop engineering, with a focus on traits related to lignocellulose, oil, and soluble sugars. Ultimately, progress and innovation in these fields may facilitate the development of beneficial traits in crop plants to meet society's bioenergy needs. Significance Statement Here we review progress in developing synthetic biology tools for plants and their use for metabolic engineering in general and specifically for improving bioenergy traits. JF - Plant Journal AU - Shih, Patrick M AU - Liang, Yan AU - Loque, Dominique AD - Joint BioEnergy Institute, Emery Station East, 5885 Hollis St, 4th Floor, Emeryville, CA, 94608, USA. Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 103 EP - 117 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 87 IS - 1 SN - 0960-7412, 0960-7412 KW - Biotechnology and Bioengineering Abstracts KW - Genomes KW - Sugar KW - Food KW - Population growth KW - Transgenes KW - Plant breeding KW - metabolic engineering KW - Transgenic plants KW - Crops KW - Oil KW - lignocellulose KW - Reviews KW - Genetic engineering KW - W 30935:Food Biotechnology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1811887772?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Journal&rft.atitle=Biotechnology+and+synthetic+biology+approaches+for+metabolic+engineering+of+bioenergy+crops&rft.au=Shih%2C+Patrick+M%3BLiang%2C+Yan%3BLoque%2C+Dominique&rft.aulast=Shih&rft.aufirst=Patrick&rft.date=2016-07-01&rft.volume=87&rft.issue=1&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=Plant+Journal&rft.issn=09607412&rft_id=info:doi/10.1111%2Ftpj.13176 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-09-01 N1 - SubjectsTermNotLitGenreText - Genomes; Sugar; Population growth; Food; Transgenes; Plant breeding; metabolic engineering; Crops; Transgenic plants; Oil; lignocellulose; Genetic engineering; Reviews DO - http://dx.doi.org/10.1111/tpj.13176 ER - TY - JOUR T1 - Deep Vadose Zone Respiration Contributions to Carbon Dioxide Fluxes from a Semiarid Floodplain AN - 1811885905; PQ0003530740 AB - Although CO2 fluxes from soils are often assumed to originate within shallow soil horizons (<1-m depth), relatively little is known about respiration rates at greater depths. We compared measured and calculated CO2 fluxes at the Rifle floodplain along the Colorado River and measured CO2 production rates of floodplain sediments to determine the relative importance of deeper vadose zone respiration. Calculations based on measured CO2 gradients and estimated effective diffusion coefficients yielded fluxes that are generally consistent with measurements obtained at the soil surface (326 g C m-2 yr-1). Carbon dioxide production from the 2.0- to 3.5-m depth interval was calculated to contribute 17% of the total floodplain respiration, with rates that were larger than some parts of the shallower vadose zone and underlying aquifer. Microbial respiration rates determined from laboratory incubation tests of the sediments support this conclusion. The deeper unsaturated zone typically maintains intermediate water and air saturations, lacks extreme temperatures and salinities, and is annually resupplied with organic carbon from snowmelt-driven recharge and by water table decline. This combination of favorable conditions supports deeper unsaturated zone microbial respiration throughout the year. JF - Vadose Zone Journal AU - Tokunaga, Tetsu K AU - Kim, Yongman AU - Conrad, Mark E AU - Bill, Markus AU - Hobson, Chad AU - Williams, Kenneth H AU - Dong, Wenming AU - Wan, Jiamin AU - Robbins, Mark J AU - Long, Philip E AU - Faybishenko, Boris AU - Christensen, John N AU - Hubbard, Susan S AD - Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, tktokunaga@lbl.gov Y1 - 2016/07// PY - 2016 DA - July 2016 SP - vzj2016.02.0014 PB - Soil Science Society of America, 677 South Segoe Rd Maxison WI 53711 United States VL - 15 IS - 7 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - DOC, dissolved organic carbon KW - OC, organic carbon KW - Aquifer KW - Aeration Zone KW - Biogeochemical cycle KW - Respiration KW - Temperature KW - Carbon cycle KW - Sediments KW - Soil Surfaces KW - Flood Plains KW - USA, Colorado R. KW - Salinity KW - Flood plains KW - Soils KW - Microorganisms KW - Carbon dioxide KW - Vadose Water KW - Carbon Dioxide KW - Q2 09102:Institutes and organizations KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1811885905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Deep+Vadose+Zone+Respiration+Contributions+to+Carbon+Dioxide+Fluxes+from+a+Semiarid+Floodplain&rft.au=Tokunaga%2C+Tetsu+K%3BKim%2C+Yongman%3BConrad%2C+Mark+E%3BBill%2C+Markus%3BHobson%2C+Chad%3BWilliams%2C+Kenneth+H%3BDong%2C+Wenming%3BWan%2C+Jiamin%3BRobbins%2C+Mark+J%3BLong%2C+Philip+E%3BFaybishenko%2C+Boris%3BChristensen%2C+John+N%3BHubbard%2C+Susan+S&rft.aulast=Tokunaga&rft.aufirst=Tetsu&rft.date=2016-07-01&rft.volume=15&rft.issue=7&rft.spage=vzj2016.02.0014&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/10.2136%2Fvzj2016.02.0014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Aquifer; Salinity; Flood plains; Biogeochemical cycle; Respiration; Soils; Carbon cycle; Carbon dioxide; Sediments; Flood Plains; Aeration Zone; Temperature; Microorganisms; Vadose Water; Soil Surfaces; Carbon Dioxide; USA, Colorado R. DO - http://dx.doi.org/10.2136/vzj2016.02.0014 ER - TY - JOUR T1 - Development of an E. coli strain for one-pot biofuel production from ionic liquid pretreated cellulose and switchgrass AN - 1811885598; PQ0003513223 AB - Biological production of chemicals and fuels using microbial transformation of sustainable carbon sources, such as pretreated and saccharified plant biomass, is a multi-step process. Typically, each segment of the workflow is optimized separately, often generating conditions that may not be suitable for integration or consolidation with the upstream or downstream steps. While significant effort has gone into developing solutions to incompatibilities at discrete steps, very few studies report the consolidation of the multi-step workflow into a single pot reactor system. Here we demonstrate a one-pot biofuel production process that uses the ionic liquid 1-ethyl-3-methylimidazolium acetate ([C2C1Im][OAc]) for pretreatment of switchgrass biomass. [C2C1Im][OAc] is highly effective in deconstructing lignocellulose, but nonetheless leaves behind residual reagents that are toxic to standard saccharification enzymes and the microbial production host. We report the discovery of an [C2C1Im]-tolerant E. coli strain, where [C2C1Im] tolerance is bestowed by a P7Q mutation in the transcriptional regulator encoded by rcdA. We establish that the causal impact of this mutation is the derepression of a hitherto uncharacterized major facilitator family transporter, YbjJ. To develop the strain for a one-pot process we engineered this [C2C1Im]-tolerant strain to express a recently reported d-limonene production pathway. We also screened previously reported [C2C1Im]-tolerant cellulases to select one that would function with the range of E. coli cultivation conditions and expressed it in the [C2C1Im]-tolerant E. coli strain so as to secrete this [C2C1Im]-tolerant cellulase. The final strain digests pretreated biomass, and uses the liberated sugars to produce the bio-jet fuel candidate precursor d-limonene in a one-pot process. JF - Green Chemistry AU - Frederix, Marijke AU - Mingardon, Florence AU - Hu, Matthew AU - Sun, Ning AU - Pray, Todd AU - Singh, Seema AU - Simmons, Blake A AU - Keasling, Jay D AU - Mukhopadhyay, Aindrila AD - Joint BioEnergy Institute; Emeryville; CA; USA Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 4189 EP - 4197 PB - Royal Society of Chemistry, c/o Springer-Verlag New York Inc. Secaucus New Jersey 07096 2485 United States VL - 18 IS - 15 SN - 1463-9262, 1463-9262 KW - Biotechnology and Bioengineering Abstracts; Sustainability Science Abstracts KW - Chemicals KW - Transformation KW - Fuel technology KW - Fuels KW - Cellulose KW - Carbon sources KW - Cellulase KW - Integration KW - Escherichia coli KW - Upstream KW - Plant biomass KW - Downstream KW - Sugar KW - Limonene KW - Derepression KW - Leaves KW - Enzymes KW - Transcription KW - Biomass KW - Acetic acid KW - lignocellulose KW - Green development KW - Mutation KW - Biofuels KW - Cultivation KW - W 30950:Waste Treatment & Pollution Clean-up KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1811885598?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Green+Chemistry&rft.atitle=Development+of+an+E.+coli+strain+for+one-pot+biofuel+production+from+ionic+liquid+pretreated+cellulose+and+switchgrass&rft.au=Frederix%2C+Marijke%3BMingardon%2C+Florence%3BHu%2C+Matthew%3BSun%2C+Ning%3BPray%2C+Todd%3BSingh%2C+Seema%3BSimmons%2C+Blake+A%3BKeasling%2C+Jay+D%3BMukhopadhyay%2C+Aindrila&rft.aulast=Frederix&rft.aufirst=Marijke&rft.date=2016-07-01&rft.volume=18&rft.issue=15&rft.spage=4189&rft.isbn=&rft.btitle=&rft.title=Green+Chemistry&rft.issn=14639262&rft_id=info:doi/10.1039%2Fc6gc00642f LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Number of references - 56 N1 - Last updated - 2016-09-01 N1 - SubjectsTermNotLitGenreText - Transformation; Sugar; Limonene; Fuels; Cellulose; Leaves; Derepression; Transcription; Enzymes; Carbon sources; Biomass; Acetic acid; Cellulase; lignocellulose; Integration; Mutation; Biofuels; Chemicals; Fuel technology; Green development; Upstream; Downstream; Plant biomass; Cultivation; Escherichia coli DO - http://dx.doi.org/10.1039/c6gc00642f ER - TY - JOUR T1 - The downside risk of climate change in California's Central Valley agricultural sector AN - 1808726942; PQ0003318416 AB - Downscaled climate change projections for California, when translated into changes in irrigation water delivery and then into profit from agriculture in the Central Valley, show an increase in conventional measures of variability such as the variance. However, these increases are modest and mask a more pronounced increase in downside risk, defined as the probability of unfavorable outcomes of water supply or profit. This paper describes the concept of downside risk and measures it as it applies to outcomes for Central Valley agriculture projected under four climate change scenarios. We compare the effect of downside risk aversion versus conventional risk aversion or risk neutrality when assessing the impact of climate change on the profitability of Central Valley agriculture. We find that, when downside risk is considered, the assessment of losses due to climate change increases substantially. JF - Climatic Change AU - Hanemann, Michael AU - Sayre, Susan Stratton AU - Dale, Larry AD - Arizona State University, Tempe, AZ, USA, lldale@lbl.gov Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 15 EP - 27 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 137 IS - 1-2 SN - 0165-0009, 0165-0009 KW - Environment Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Risk assessment KW - Agriculture KW - Irrigation water KW - Variability KW - Climate change KW - Water Supply KW - Water supplies KW - Risks KW - Risk aversion KW - INE, USA, California KW - Economics KW - Cost analysis KW - Profits KW - Irrigation KW - Ecosystem disturbance KW - Water supply KW - Irrigation Water KW - USA, California, Central Valley KW - Climate change scenarios KW - ENA 06:Food & Drugs KW - Q5 08503:Characteristics, behavior and fate KW - M2 551.583:Variations (551.583) KW - SW 0810:General KW - O 4080:Pollution - Control and Prevention UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808726942?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climatic+Change&rft.atitle=The+downside+risk+of+climate+change+in+California%27s+Central+Valley+agricultural+sector&rft.au=Hanemann%2C+Michael%3BSayre%2C+Susan+Stratton%3BDale%2C+Larry&rft.aulast=Hanemann&rft.aufirst=Michael&rft.date=2016-07-01&rft.volume=137&rft.issue=1-2&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&rft_id=info:doi/10.1007%2Fs10584-016-1651-z LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Number of references - 35 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Irrigation water; Cost analysis; Climate change; Ecosystem disturbance; Risks; Water supply; Agriculture; Irrigation; Climate change scenarios; Risk aversion; Risk assessment; Economics; Profits; Water supplies; Variability; Water Supply; Irrigation Water; INE, USA, California; USA, California, Central Valley DO - http://dx.doi.org/10.1007/s10584-016-1651-z ER - TY - JOUR T1 - Switchable ionic liquids based on di-carboxylic acids for one-pot conversion of biomass to an advanced biofuel AN - 1808679862; PQ0003464127 AB - Certain ionic liquids have recently been developed as effective solvents for biomass pretreatment, but their adoption has been limited due to availability, production costs, and inhibitory effects on conventional enzymes and microorganisms. We describe here a novel class of ionic liquids based on di-carboxylic acids that have high pretreatment efficiency and are compatible with both commercial enzyme mixtures and microbial fermentation host organisms. This system takes advantage of the two ionization states of di-carboxylic acids to switch from a basic solution that pretreats biomass effectively to an acidic solution with conditions favorable for cellulases and back again for the next round of pretreatment. Lab-scale reactions show 90% conversion of lignocellulosic biomass to fermentable sugars using commercial enzyme mixtures in a one-pot process. We then demonstrate E. coli fermentation of the resulting crude hydrolysate to produce isopentenol without removal of the ionic liquid or inhibitors prior to fermentation. This new process yields high biomass conversion and eliminates several technical and economic problems associated with current ionic liquid-based processes. Our preliminary techno-economic analysis (TEA) suggests biorefineries designed to use these switchable ILs can reduce the minimum selling price (MSP) of their biofuel by more than $1 gal-1 relative to biorefineries utilizing traditional ILs (e.g., [C2C1Im][OAc]) that have been shown to be very effective at pretreatment but inhibit downstream saccharification and fermentation processes, requiring extensive washing of the pretreated biomass. JF - Green Chemistry AU - Liszka, Michael J AU - Kang, Aram AU - Konda, NVSNMurthy AU - Tran, Kim AU - Gladden, John M AU - Singh, Seema AU - Keasling, Jay D AU - Scown, Corinne D AU - Lee, Taek Soon AU - Simmons, Blake A AU - Sale, Kenneth L AD - Joint Bioenergy Institute; 5885 Hollis Street; Emeryville; CA 94608; USA Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 4012 EP - 4021 PB - Royal Society of Chemistry, c/o Springer-Verlag New York Inc. Secaucus New Jersey 07096 2485 United States VL - 18 IS - 14 SN - 1463-9262, 1463-9262 KW - Biotechnology and Bioengineering Abstracts; Sustainability Science Abstracts KW - Fuel technology KW - Fermentation KW - Adoption KW - Cellulase KW - Tea KW - Economics KW - Escherichia coli KW - Downstream KW - Tetraethylammonium KW - Hydrolysates KW - Sugar KW - Solvents KW - Enzymes KW - Production costs KW - Biomass KW - Acids KW - Green development KW - Microorganisms KW - Ionization KW - Biofuels KW - M3 1010:Issues in Sustainable Development KW - W 30945:Fermentation & Cell Culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808679862?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Green+Chemistry&rft.atitle=Switchable+ionic+liquids+based+on+di-carboxylic+acids+for+one-pot+conversion+of+biomass+to+an+advanced+biofuel&rft.au=Liszka%2C+Michael+J%3BKang%2C+Aram%3BKonda%2C+NVSNMurthy%3BTran%2C+Kim%3BGladden%2C+John+M%3BSingh%2C+Seema%3BKeasling%2C+Jay+D%3BScown%2C+Corinne+D%3BLee%2C+Taek+Soon%3BSimmons%2C+Blake+A%3BSale%2C+Kenneth+L&rft.aulast=Liszka&rft.aufirst=Michael&rft.date=2016-07-01&rft.volume=18&rft.issue=14&rft.spage=4012&rft.isbn=&rft.btitle=&rft.title=Green+Chemistry&rft.issn=14639262&rft_id=info:doi/10.1039%2Fc6gc00657d LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Number of references - 43 N1 - Last updated - 2016-09-01 N1 - SubjectsTermNotLitGenreText - Sugar; Fermentation; Solvents; Enzymes; Adoption; Biomass; Cellulase; Acids; Economics; Microorganisms; Tetraethylammonium; Ionization; Biofuels; Hydrolysates; Fuel technology; Tea; Green development; Production costs; Downstream; Escherichia coli DO - http://dx.doi.org/10.1039/c6gc00657d ER - TY - JOUR T1 - Genome-wide selective sweeps and gene-specific sweeps in natural bacterial populations AN - 1808632467; PQ0003329012 AB - Multiple models describe the formation and evolution of distinct microbial phylogenetic groups. These evolutionary models make different predictions regarding how adaptive alleles spread through populations and how genetic diversity is maintained. Processes predicted by competing evolutionary models, for example, genome-wide selective sweeps vs gene-specific sweeps, could be captured in natural populations using time-series metagenomics if the approach were applied over a sufficiently long time frame. Direct observations of either process would help resolve how distinct microbial groups evolve. Here, from a 9-year metagenomic study of a freshwater lake (2005-2013), we explore changes in single-nucleotide polymorphism (SNP) frequencies and patterns of gene gain and loss in 30 bacterial populations. SNP analyses revealed substantial genetic heterogeneity within these populations, although the degree of heterogeneity varied by >1000-fold among populations. SNP allele frequencies also changed dramatically over time within some populations. Interestingly, nearly all SNP variants were slowly purged over several years from one population of green sulfur bacteria, while at the same time multiple genes either swept through or were lost from this population. These patterns were consistent with a genome-wide selective sweep in progress, a process predicted by the 'ecotype model' of speciation but not previously observed in nature. In contrast, other populations contained large, SNP-free genomic regions that appear to have swept independently through the populations prior to the study without purging diversity elsewhere in the genome. Evidence for both genome-wide and gene-specific sweeps suggests that different models of bacterial speciation may apply to different populations coexisting in the same environment. JF - ISME Journal AU - Bendall, Matthew L AU - Stevens, Sarah LR AU - Chan, Leong-Keat AU - Malfatti, Stephanie AU - Schwientek, Patrick AU - Tremblay, Julien AU - Schackwitz, Wendy AU - Martin, Joel AU - Pati, Amrita AU - Bushnell, Brian AU - Froula, Jeff AU - Kang, Dongwan AU - Tringe, Susannah G AU - Bertilsson, Stefan AU - Moran, Mary A AU - Shade, Ashley AU - Newton, Ryan J AU - McMahon, Katherine D AU - Malmstrom, Rex R AD - DOE Joint Genome Institute, Walnut Creek, CA, USA Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 1589 EP - 1601 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 10 IS - 7 SN - 1751-7362, 1751-7362 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Environment Abstracts; Ecology Abstracts KW - Prediction KW - Sulfur KW - Phylogeny KW - Genomes KW - Bacteria KW - Speciation KW - Freshwater lakes KW - Freshwater environments KW - green sulfur bacteria KW - Genetic diversity KW - Time series analysis KW - Models KW - Population genetics KW - Lakes KW - Ecotypes KW - Single-nucleotide polymorphism KW - Natural populations KW - Gene frequency KW - genomics KW - Evolution KW - A 01450:Environmental Pollution & Waste Treatment KW - D 04040:Ecosystem and Ecology Studies KW - ENA 19:Water Pollution KW - J 02450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808632467?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ISME+Journal&rft.atitle=Genome-wide+selective+sweeps+and+gene-specific+sweeps+in+natural+bacterial+populations&rft.au=Bendall%2C+Matthew+L%3BStevens%2C+Sarah+LR%3BChan%2C+Leong-Keat%3BMalfatti%2C+Stephanie%3BSchwientek%2C+Patrick%3BTremblay%2C+Julien%3BSchackwitz%2C+Wendy%3BMartin%2C+Joel%3BPati%2C+Amrita%3BBushnell%2C+Brian%3BFroula%2C+Jeff%3BKang%2C+Dongwan%3BTringe%2C+Susannah+G%3BBertilsson%2C+Stefan%3BMoran%2C+Mary+A%3BShade%2C+Ashley%3BNewton%2C+Ryan+J%3BMcMahon%2C+Katherine+D%3BMalmstrom%2C+Rex+R&rft.aulast=Bendall&rft.aufirst=Matthew&rft.date=2016-07-01&rft.volume=10&rft.issue=7&rft.spage=1589&rft.isbn=&rft.btitle=&rft.title=ISME+Journal&rft.issn=17517362&rft_id=info:doi/10.1038%2Fismej.2015.241 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-09-29 N1 - SubjectsTermNotLitGenreText - Genomes; Phylogeny; Speciation; Freshwater environments; green sulfur bacteria; Genetic diversity; Models; Population genetics; Lakes; Single-nucleotide polymorphism; Ecotypes; Gene frequency; genomics; Evolution; Sulfur; Prediction; Freshwater lakes; Natural populations; Time series analysis; Bacteria DO - http://dx.doi.org/10.1038/ismej.2015.241 ER - TY - JOUR T1 - Suppressive action of miRNAs to ARP2/3 complex reduces cell migration and proliferation via RAC isoforms in Hirschsprung disease. AN - 1801428158; 26991540 AB - Hirschsprung disease (HSCR) is a congenital disorder caused by the defective function of the embryonic enteric neural crest. The impaired migration of embryonic enteric neural crest plays an important role in the pathogenesis of this disease. Recent studies showed that the ARP2/3 complex and RAC isoforms had effects on actin cytoskeleton remodelling, which contributes to migration. Moreover, some regulatory relationships were identified between ARP2/3 complex and RAC isoforms. Although microRNAs (miRNAs) have been known to modulate target gene expression on the post-transcriptional level, little is known about the regulation among miRNAs, ARP2/3 complex and RAC isoforms. Here, we report that down-regulation of ARP2 and ARP3, two main subunits of ARP2/3 complex, suppressed migration and proliferation in 293T and SH-SY5Y cell lines via the inhibition of RAC1 and RAC2. Meanwhile, as the target genes, ARP2 and ARP3 are reduced by increased miR-24-1* and let-7a*, respectively, in 70 HSCR samples as compared with 74 normal controls. Co-immunoprecipitation showed that aberrant reduction in ARP2 and ARP3 could weaken the function of ARP2/3 complex. Our study demonstrates that the miR-24-1*/let-7a*-ARP2/3 complex-RAC isoforms pathway may represent a novel pathogenic mechanism for HSCR. JF - Journal of cellular and molecular medicine AU - Tang, Weibing AU - Cai, Peng AU - Huo, Weiwei AU - Li, Hongxing AU - Tang, Junwei AU - Zhu, Dongmei AU - Xie, Hua AU - Chen, Pingfa AU - Hang, Bo AU - Wang, Shouyu AU - Xia, Yankai AD - Department of Pediatric Surgery, Nanjing Children's Hospital Affiliated Nanjing Medical University, Nanjing, China. ; Children's Hospital of Soochow University, Soochow, China. ; State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China. ; Department of Cell and Molecular Biology, Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 1266 EP - 1275 VL - 20 IS - 7 KW - Index Medicus KW - ARP2/3 complex KW - gene regulation KW - Hirschsprung disease KW - microRNA KW - RAC isoforms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1801428158?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+cellular+and+molecular+medicine&rft.atitle=Suppressive+action+of+miRNAs+to+ARP2%2F3+complex+reduces+cell+migration+and+proliferation+via+RAC+isoforms+in+Hirschsprung+disease.&rft.au=Tang%2C+Weibing%3BCai%2C+Peng%3BHuo%2C+Weiwei%3BLi%2C+Hongxing%3BTang%2C+Junwei%3BZhu%2C+Dongmei%3BXie%2C+Hua%3BChen%2C+Pingfa%3BHang%2C+Bo%3BWang%2C+Shouyu%3BXia%2C+Yankai&rft.aulast=Tang&rft.aufirst=Weibing&rft.date=2016-07-01&rft.volume=20&rft.issue=7&rft.spage=1266&rft.isbn=&rft.btitle=&rft.title=Journal+of+cellular+and+molecular+medicine&rft.issn=1582-4934&rft_id=info:doi/10.1111%2Fjcmm.12799 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-07-01 N1 - Date revised - 2017-02-17 N1 - Genetic sequence - BK20131388; GENBANK N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1111/jcmm.12799 ER - TY - JOUR T1 - Tobacco toxins deposited on surfaces (third hand smoke) impair wound healing. AN - 1797256363; 27129193 AB - Third hand smoke (THS) is the accumulation of second hand smoke (SHS) toxins on surfaces in homes, cars, clothing and hair of smokers. It is known that 88M US nonsmokers ≥3 years old living in homes of smokers are exposed to THS toxicants and show blood cotinine levels of ≥0.05 ng/ml, indicating that the toxins are circulating in their circulatory systems. The goal of the present study is to investigate the mechanisms by which THS causes impaired wound healing. We show that mice living under conditions that mimic THS exposure in humans display delayed wound closure, impaired collagen deposition, altered inflammatory response, decreased angiogenesis, microvessels with fibrin cuffs and a highly proteolytic wound environment. Moreover, THS-exposed mouse wounds have high levels of oxidative stress and significantly lower levels of antioxidant activity leading to molecular damage, including protein nitration, lipid peroxidation and DNA damage that contribute to tissue dysfunction. Furthermore, we show that elastase is elevated, suggesting that elastin is degraded and the plasticity of the wound tissue is decreased. Taken together, our results lead us to conclude that THS toxicants delay and impair wound healing by disrupting the sequential processes that lead to normal healing. In addition, the lack of elastin results in loss of wound plasticity, which may be responsible for reopening of wounds. JF - Clinical science (London, England : 1979) AU - Dhall, Sandeep AU - Alamat, Raquelle AU - Castro, Anthony AU - Sarker, Altaf H AU - Mao, Jian-Hua AU - Chan, Alex AU - Hang, Bo AU - Martins-Green, Manuela AD - Department of Cell Biology and Neuroscience, University of California at Riverside, Riverside, CA 92521, U.S.A. ; Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, U.S.A. ; Department of Cell Biology and Neuroscience, University of California at Riverside, Riverside, CA 92521, U.S.A. manuela.martins@ucr.edu. Y1 - 2016/07/01/ PY - 2016 DA - 2016 Jul 01 SP - 1269 EP - 1284 VL - 130 IS - 14 KW - Index Medicus KW - DNA damage KW - inflammation KW - cytokine KW - angiogenesis KW - toxicants KW - reactive oxygen species and antioxidants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797256363?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Clinical+science+%28London%2C+England+%3A+1979%29&rft.atitle=Tobacco+toxins+deposited+on+surfaces+%28third+hand+smoke%29+impair+wound+healing.&rft.au=Dhall%2C+Sandeep%3BAlamat%2C+Raquelle%3BCastro%2C+Anthony%3BSarker%2C+Altaf+H%3BMao%2C+Jian-Hua%3BChan%2C+Alex%3BHang%2C+Bo%3BMartins-Green%2C+Manuela&rft.aulast=Dhall&rft.aufirst=Sandeep&rft.date=2016-07-01&rft.volume=130&rft.issue=14&rft.spage=1269&rft.isbn=&rft.btitle=&rft.title=Clinical+science+%28London%2C+England+%3A+1979%29&rft.issn=1470-8736&rft_id=info:doi/10.1042%2FCS20160236 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-06-14 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1042/CS20160236 ER - TY - JOUR T1 - Significance of the School Physical Environment - A Commentary AN - 1793125194 JF - The Journal of School Health AU - Fisk, William J AU - Paulson, Jerome A AU - Kolbe, Lloyd J AU - Barnett, Claire L AD - Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, CA ; Pediatrics and Environmental and Occupational Health, George Washington University School of Medicine and Health Sciences and George Washington, University Milken Institute School of Public Health, Alexandria, VA ; Applied Health Science, Indiana University School of Public Health, Vero Beach, FL ; Healthy Schools Network, Albany, NY Y1 - 2016/07// PY - 2016 DA - Jul 2016 SP - 483 EP - 487 CY - Kent PB - Wiley Subscription Services, Inc. VL - 86 IS - 7 SN - 0022-4391 KW - Physical Fitness And Hygiene KW - Built environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793125194?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aassia&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+School+Health&rft.atitle=Significance+of+the+School+Physical+Environment+-+A+Commentary&rft.au=Fisk%2C+William+J%3BPaulson%2C+Jerome+A%3BKolbe%2C+Lloyd+J%3BBarnett%2C+Claire+L&rft.aulast=Fisk&rft.aufirst=William&rft.date=2016-07-01&rft.volume=86&rft.issue=7&rft.spage=483&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+School+Health&rft.issn=00224391&rft_id=info:doi/10.3969%2Fj.issn.1002-6819.2014.14.030 LA - English DB - Applied Social Sciences Index & Abstracts (ASSIA) N1 - Copyright - © 2016, American School Health Association N1 - Last updated - 2016-06-02 DO - http://dx.doi.org/10.1111/josh.12400 ER - TY - JOUR T1 - Compressional residual stress in Bastogne boudins revealed by synchrotron X-ray microdiffraction AN - 1815668006; 2016-076418 AB - Lattice distortions in crystals can be mapped at the micron scale using synchrotron X-ray Laue microdiffraction (mu XRD). From lattice distortions the shape and orientation of the elastic strain tensor can be derived and interpreted in terms of residual stress. Here we apply the new method to vein quartz from the original boudinage locality at Bastogne, Belgium. A long-standing debate surrounds the kinematics of the Bastogne boudins. The mu XRD measurements reveal a shortening residual elastic strain, perpendicular to the vein wall, corroborating the model that the Bastogne boudins formed by layer-parallel shortening and not by layer-parallel extension, as is in the geological community generally inferred by the process of boudinage. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Chen, Kai AU - Kunz, Martin AU - Li, Yao AU - Zepeda-Alarcon, Eloisa AU - Sintubin, Manuel AU - Wenk, Hans-Rudolf Y1 - 2016/06/28/ PY - 2016 DA - 2016 Jun 28 SP - 6178 EP - 6185 PB - American Geophysical Union, Washington, DC VL - 43 IS - 12 SN - 0094-8276, 0094-8276 KW - silicates KW - Laue X-ray microdiffraction analysis KW - lattice KW - X-ray diffraction data KW - strain KW - silica minerals KW - data processing KW - unit cell KW - Europe KW - crystal structure KW - calibration KW - thin sections KW - elastic strain KW - synchrotron radiation KW - Hooke's law KW - distortion KW - boudinage KW - grain boundaries KW - framework silicates KW - compression KW - Wallonia Belgium KW - orientation KW - experimental studies KW - Western Europe KW - structural analysis KW - stress KW - stress fields KW - deformation KW - veins KW - Ardennes KW - samples KW - Luxembourg Belgium KW - two-dimensional models KW - measurement KW - geometry KW - quartz veins KW - kinematics KW - single-crystal method KW - Belgium KW - quartz KW - lattice parameters KW - Bastogne Belgium KW - crystallography KW - 16:Structural geology KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815668006?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Compressional+residual+stress+in+Bastogne+boudins+revealed+by+synchrotron+X-ray+microdiffraction&rft.au=Chen%2C+Kai%3BKunz%2C+Martin%3BLi%2C+Yao%3BZepeda-Alarcon%2C+Eloisa%3BSintubin%2C+Manuel%3BWenk%2C+Hans-Rudolf&rft.aulast=Chen&rft.aufirst=Kai&rft.date=2016-06-28&rft.volume=43&rft.issue=12&rft.spage=6178&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL069236 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-09-01 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - Ardennes; Bastogne Belgium; Belgium; boudinage; calibration; compression; crystal structure; crystallography; data processing; deformation; distortion; elastic strain; Europe; experimental studies; framework silicates; geometry; grain boundaries; Hooke's law; kinematics; lattice; lattice parameters; Laue X-ray microdiffraction analysis; Luxembourg Belgium; measurement; orientation; quartz; quartz veins; samples; silica minerals; silicates; single-crystal method; strain; stress; stress fields; structural analysis; synchrotron radiation; thin sections; two-dimensional models; unit cell; veins; Wallonia Belgium; Western Europe; X-ray diffraction data DO - http://dx.doi.org/10.1002/2016GL069236 ER - TY - JOUR T1 - Quantitative Tagless Copurification: A Method to Validate and Identify Protein-Protein Interactions AN - 1808671606; PQ0003461007 AB - Identifying protein-protein interactions (PPIs) at an acceptable false discovery rate (FDR) is challenging. Previously we identified several hundred PPIs from affinity purification - mass spectrometry (AP-MS) data for the bacteria Escherichia coli and Desulfovibrio vulgaris. These two interactomes have lower FDRs than any of the nine interactomes proposed previously for bacteria and are more enriched in PPIs validated by other data than the nine earlier interactomes. To more thoroughly determine the accuracy of ours or other interactomes and to discover further PPIs de novo, here we present a quantitative tagless method that employs iTRAQ MS to measure the copurification of endogenous proteins through orthogonal chromatography steps. 5273 fractions from a four-step fractionation of a D. vulgaris protein extract were assayed, resulting in the detection of 1242 proteins. Protein partners from our D. vulgaris and E. coli AP-MS interactomes copurify as frequently as pairs belonging to three benchmark data sets of well-characterized PPIs. In contrast, the protein pairs from the nine other bacterial interactomes copurify two- to 20-fold less often. We also identify 200 high confidence D. vulgaris PPIs based on tagless copurification and colocalization in the genome. These PPIs are as strongly validated by other data as our AP-MS interactomes and overlap with our AP-MS interactome for D.vulgaris within 3% of expectation, once FDRs and false negative rates are taken into account. Finally, we reanalyzed data from two quantitative tagless screens of human cell extracts. We estimate that the novel PPIs reported in these studies have an FDR of at least 85% and find that less than 7% of the novel PPIs identified in each screen overlap. Our results establish that a quantitative tagless method can be used to validate and identify PPIs, but that such data must be analyzed carefully to minimize the FDR. JF - Molecular and Cellular Proteomics AU - Shatsky, Maxim AU - Dong, Ming AU - Liu, Haichuan AU - Yang, Lee Lisheng AU - Choi, Megan AU - Singer, Mary E AU - Geller, Jil T AU - Fisher, Susan J AU - Hall, Steven C AU - Hazen, Terry C AU - Brenner, Steven E AU - Butland, Gareth AU - Jin, Jian AU - Witkowska, HEwa AU - Chandonia, John-Marc AU - Biggin, Mark D AD - From the Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720; , mdbiggin@lbl.gov Y1 - 2016/06/20/ PY - 2016 DA - 2016 Jun 20 SP - 2186 EP - 2202 PB - American Society for Biochemistry and Molecular Biology, 9650 Rockville Pike Bethesda MD 20814-3996 United States VL - 15 IS - 6 SN - 1535-9476, 1535-9476 KW - Biotechnology and Bioengineering Abstracts KW - Genomes KW - Data processing KW - Chromatography KW - Escherichia coli KW - proteomics KW - Desulfovibrio vulgaris KW - Protein interaction KW - Mass spectroscopy KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808671606?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+and+Cellular+Proteomics&rft.atitle=Quantitative+Tagless+Copurification%3A+A+Method+to+Validate+and+Identify+Protein-Protein+Interactions&rft.au=Shatsky%2C+Maxim%3BDong%2C+Ming%3BLiu%2C+Haichuan%3BYang%2C+Lee+Lisheng%3BChoi%2C+Megan%3BSinger%2C+Mary+E%3BGeller%2C+Jil+T%3BFisher%2C+Susan+J%3BHall%2C+Steven+C%3BHazen%2C+Terry+C%3BBrenner%2C+Steven+E%3BButland%2C+Gareth%3BJin%2C+Jian%3BWitkowska%2C+HEwa%3BChandonia%2C+John-Marc%3BBiggin%2C+Mark+D&rft.aulast=Shatsky&rft.aufirst=Maxim&rft.date=2016-06-20&rft.volume=15&rft.issue=6&rft.spage=2186&rft.isbn=&rft.btitle=&rft.title=Molecular+and+Cellular+Proteomics&rft.issn=15359476&rft_id=info:doi/10.1074%2Fmcp.M115.057117 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-08-17 N1 - SubjectsTermNotLitGenreText - Genomes; Data processing; Chromatography; proteomics; Mass spectroscopy; Protein interaction; Escherichia coli; Desulfovibrio vulgaris DO - http://dx.doi.org/10.1074/mcp.M115.057117 ER - TY - JOUR T1 - In situ diagnostics of the crystal-growth process through neutron imaging; application to scintillators AN - 1832656877; 779142-3 AB - Neutrons are known to be unique probes in situations where other types of radiation fail to penetrate samples and their surrounding structures. In this paper it is demonstrated how thermal and cold neutron radiography can provide time-resolved imaging of materials while they are being processed (e.g. while growing single crystals). The processing equipment, in this case furnaces, and the scintillator materials are opaque to conventional X-ray interrogation techniques. The distribution of the europium activator within a BaBrCl:Eu scintillator (0.1 and 0.5% nominal doping concentrations per mole) is studied in situ during the melting and solidification processes with a temporal resolution of 5-7&U+2005;s. The strong tendency of the Eu dopant to segregate during the solidification process is observed in repeated cycles, with Eu forming clusters on multiple length scales (only for clusters larger than approximately 50&U+2005;mu m, as limited by the resolution of the present experiments). It is also demonstrated that the dopant concentration can be quantified even for very low concentration levels ( approximately 0.1%) in 10&U+2005;mm thick samples. The interface between the solid and liquid phases can also be imaged, provided there is a sufficient change in concentration of one of the elements with a sufficient neutron attenuation cross section. Tomographic imaging of the BaBrCl:0.1%Eu sample reveals a strong correlation between crystal fractures and Eu-deficient clusters. The results of these experiments demonstrate the unique capabilities of neutron imaging for in situ diagnostics and the optimization of crystal-growth procedures. Abstract Copyright Anton S. Tremsin et al. 2016. JF - Journal of Applied Crystallography AU - Tremsin, Anton S AU - Makowska, Malgorzata G AU - Perrodin, Didier AU - Shalapska, Tetiana AU - Khodyuk, Ivan V AU - Trtik, Pavel AU - Boillat, Pierre AU - Vogel, Sven C AU - Losko, Adrian S AU - Strobl, Markus AU - Kuhn, L Theil AU - Bizarri, Gregory A AU - Bourret-Courchesne, Edith D Y1 - 2016/06/01/ PY - 2016 DA - 2016 Jun 01 SP - 743 EP - 755 PB - Munksgaard, Copenhagen VL - 49 IS - 3 SN - 0021-8898, 0021-8898 KW - tomography KW - scintillators KW - liquid phase KW - experimental studies KW - chemical analysis KW - in situ KW - crystal growth KW - defects KW - non-detructive methods KW - solid phase KW - radiography KW - neutron imaging KW - neutrons KW - interfaces KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832656877?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Crystallography&rft.atitle=In+situ+diagnostics+of+the+crystal-growth+process+through+neutron+imaging%3B+application+to+scintillators&rft.au=Tremsin%2C+Anton+S%3BMakowska%2C+Malgorzata+G%3BPerrodin%2C+Didier%3BShalapska%2C+Tetiana%3BKhodyuk%2C+Ivan+V%3BTrtik%2C+Pavel%3BBoillat%2C+Pierre%3BVogel%2C+Sven+C%3BLosko%2C+Adrian+S%3BStrobl%2C+Markus%3BKuhn%2C+L+Theil%3BBizarri%2C+Gregory+A%3BBourret-Courchesne%2C+Edith+D&rft.aulast=Tremsin&rft.aufirst=Anton&rft.date=2016-06-01&rft.volume=49&rft.issue=3&rft.spage=743&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Crystallography&rft.issn=00218898&rft_id=info:doi/10.1107%2FS1600576716004350 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Number of references - 35 N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - JACGAR N1 - SubjectsTermNotLitGenreText - chemical analysis; crystal growth; defects; experimental studies; in situ; interfaces; liquid phase; neutron imaging; neutrons; non-detructive methods; radiography; scintillators; solid phase; tomography DO - http://dx.doi.org/10.1107/S1600576716004350 ER - TY - JOUR T1 - Ni-phyllosilicates (garnierites) from the Falcondo Ni-laterite deposit (Dominican Republic); mineralogy, nanotextures, and formation mechanisms by HRTEM and AEM AN - 1819895745; 2016-079207 AB - Ni-bearing magnesium phyllosilicates (garnierites) are significant Ni ores in Ni-laterites worldwide. The present paper reports a detailed TEM investigation of garnierites from the Falcondo Ni-laterite deposit (Dominican Republic). Different types of garnierites have been recognized, usually consisting of mixtures between serpentine and talc-like phases that display a wide range of textures at the nanometer scale. In particular, chrysotile tubes, polygonal serpentine, and lizardite lamellae are intergrown with less crystalline, talc-like lamellae. Samples consisting uniquely of talc-like and of sepiolite-falcondoite were also observed, occurring as distinctive thin lamellae and long ribbon-shaped fibers, respectively. HRTEM imaging indicates that serpentine is replaced by the talc-like phase, whereas TEM-AEM data show preferential concentration of Ni in the talc-like phase. We suggest, therefore, that the crystallization of Ni-bearing phyllosilicates is associated with an increase in the silica activity of the system, promoting the replacement of the Ni-poor serpentine by the Ni-enriched talc-like phase. These results have interesting implications in material science, as garnierites are natural analogs of Ni-bearing phyllosilicate-supported synthetic catalysts. Finally, SAED and HRTEM suggest that the Ni-bearing talc-like phase corresponds to a variety of talc with extra water, showing larger d (sub 001) than talc (i.e., 9.2-9.7 A), described as "kerolite"-"pimelite" in clay mineral literature. JF - American Mineralogist AU - Villanova de Benavent, Cristina AU - Nieto, Fernando AU - Viti, Cecilia AU - Proenza, Joaquin A AU - Gali, Salvador AU - Roque-Rosell, Josep Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 1460 EP - 1473 PB - Mineralogical Society of America, Washington, DC VL - 101 IS - 6 SN - 0003-004X, 0003-004X KW - silicates KW - serpentine KW - Greater Antilles KW - garnierite KW - cerolite KW - sepiolite KW - chrysotile KW - mineral composition KW - serpentine group KW - talc KW - soils KW - lizardite KW - high-resolution methods KW - Hispaniola KW - textures KW - West Indies KW - electron microscopy data KW - Caribbean region KW - TEM data KW - Antilles KW - nickel ores KW - metal ores KW - pimelite KW - Dominican Republic KW - sheet silicates KW - Falcondo Deposit KW - nanoparticles KW - laterites KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819895745?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Ni-phyllosilicates+%28garnierites%29+from+the+Falcondo+Ni-laterite+deposit+%28Dominican+Republic%29%3B+mineralogy%2C+nanotextures%2C+and+formation+mechanisms+by+HRTEM+and+AEM&rft.au=Villanova+de+Benavent%2C+Cristina%3BNieto%2C+Fernando%3BViti%2C+Cecilia%3BProenza%2C+Joaquin+A%3BGali%2C+Salvador%3BRoque-Rosell%2C+Josep&rft.aulast=Villanova+de+Benavent&rft.aufirst=Cristina&rft.date=2016-06-01&rft.volume=101&rft.issue=6&rft.spage=1460&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2016-5518 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 55 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-09-16 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - Antilles; Caribbean region; cerolite; chrysotile; Dominican Republic; electron microscopy data; Falcondo Deposit; garnierite; Greater Antilles; high-resolution methods; Hispaniola; laterites; lizardite; metal ores; mineral composition; nanoparticles; nickel ores; pimelite; sepiolite; serpentine; serpentine group; sheet silicates; silicates; soils; talc; TEM data; textures; West Indies DO - http://dx.doi.org/10.2138/am-2016-5518 ER - TY - JOUR T1 - CRISPR-Cas9 Genome Engineering in Saccharomyces cerevisiae Cells AN - 1808740647; PQ0003355161 AB - This protocol describes a method for CRISPR-Cas9-mediated genome editing that results in scarless and marker-free integrations of DNA into Saccharomyces cerevisiae genomes. DNA integration results from cotransforming (1) a single plasmid (pCAS) that coexpresses the Cas9 endonuclease and a uniquely engineered single guide RNA (sgRNA) expression cassette and (2) a linear DNA molecule that is used to repair the chromosomal DNA damage by homology-directed repair. For target specificity, the pCAS plasmid requires only a single cloning modification: replacing the 20-bp guide RNA sequence within the sgRNA cassette. This CRISPR-Cas9 protocol includes methods for (1) cloning the unique target sequence into pCAS, (2) assembly of the double-stranded DNA repair oligonucleotides, and (3) cotransformation of pCAS and linear repair DNA into yeast cells. The protocol is technically facile and requires no special equipment. It can be used in any S. cerevisiae strain, including industrial polyploid isolates. Therefore, this CRISPR-Cas9-based DNA integration protocol is achievable by virtually any yeast genetics and molecular biology laboratory. JF - Cold Spring Harbor Protocols AU - Ryan, Owen W AU - Poddar, Snigdha AU - Cate, Jamie HD AD - Energy Biosciences Institute, University of California, Berkeley, California 94720, jcate@lbl.gov Y1 - 2016/06// PY - 2016 DA - June 2016 PB - Cold Spring Harbor Laboratory Press, Fulfillment & Distribution Dept. Woodbury NY 11797-2924 United States IS - 6 SN - 1940-3402, 1940-3402 KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Biotechnology and Bioengineering Abstracts KW - Genomes KW - Integration KW - DNA damage KW - Polyploidy KW - RNA KW - Nucleotide sequence KW - Plasmids KW - DNA repair KW - Endonuclease KW - Oligonucleotides KW - Saccharomyces cerevisiae KW - W 30925:Genetic Engineering KW - K 03310:Genetics & Taxonomy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808740647?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cold+Spring+Harbor+Protocols&rft.atitle=CRISPR-Cas9+Genome+Engineering+in+Saccharomyces+cerevisiae+Cells&rft.au=Ryan%2C+Owen+W%3BPoddar%2C+Snigdha%3BCate%2C+Jamie+HD&rft.aulast=Ryan&rft.aufirst=Owen&rft.date=2016-06-01&rft.volume=&rft.issue=6&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Cold+Spring+Harbor+Protocols&rft.issn=19403402&rft_id=info:doi/10.1101%2Fpdb.prot086827 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-09-14 N1 - SubjectsTermNotLitGenreText - Genomes; DNA damage; Integration; Polyploidy; RNA; Nucleotide sequence; Endonuclease; DNA repair; Plasmids; Oligonucleotides; Saccharomyces cerevisiae DO - http://dx.doi.org/10.1101/pdb.prot086827 ER - TY - JOUR T1 - Individual variations in dose response for spatial memory learning among outbred wistar rats exposed from 5 to 20 cGy of super(56)Fe particles AN - 1808710813; PQ0003308390 AB - Exposures of brain tissue to ionizing radiation can lead to persistent deficits in cognitive functions and behaviors. However, little is known about the quantitative relationships between exposure dose and neurological risks, especially for lower doses and among genetically diverse individuals. We investigated the dose relationship for spatial memory learning among genetically outbred male Wistar rats exposed to graded doses of super(56)Fe particles (sham, 5, 10, 15, and 20 cGy; 1 GeV/n). Spatial memory learning was assessed on a Barnes maze using REL3 ratios measured at three months after exposure. Irradiated animals showed dose-dependent declines in spatial memory learning that were fit by a linear regression (P for slope <0.0002). The irradiated animals showed significantly impaired learning at 10 cGy exposures, no detectable learning between 10 and 15 cGy, and worsened performances between 15 and 20 cGy. The proportions of poor learners and the magnitude of their impairment were fit by linear regressions with doubling doses of 10 cGy. In contrast, there were no detectable deficits in learning among the good learners in this dose range. Our findings suggest that genetically diverse individuals can vary substantially in their spatial memory learning, and that exposures at low doses appear to preferentially impact poor learners. This hypothesis invites future investigations of the genetic and physiological mechanisms of inter-individual variations in brain function related to spatial memory learning after low-dose HZE radiation exposures and to determine whether it also applies to physical trauma to brain tissue and exposures to chemical neurotoxicants. Environ. Mol. Mutagen. 57:331-340, 2016. JF - Environmental and Molecular Mutagenesis AU - Wyrobek, Andrew J AU - Britten, Richard A AD - Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California. Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 331 EP - 340 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 57 IS - 5 SN - 0893-6692, 0893-6692 KW - Environment Abstracts KW - Rats KW - Risk assessment KW - Mutagens KW - Education KW - Radiation KW - Cognitive ability KW - Ionizing radiation KW - Neurotoxicity KW - Physiology KW - Brain KW - Particulates KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808710813?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+and+Molecular+Mutagenesis&rft.atitle=Individual+variations+in+dose+response+for+spatial+memory+learning+among+outbred+wistar+rats+exposed+from+5+to+20+cGy+of+super%2856%29Fe+particles&rft.au=Wyrobek%2C+Andrew+J%3BBritten%2C+Richard+A&rft.aulast=Wyrobek&rft.aufirst=Andrew&rft.date=2016-06-01&rft.volume=57&rft.issue=5&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Environmental+and+Molecular+Mutagenesis&rft.issn=08936692&rft_id=info:doi/10.1002%2Fem.22018 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-08-04 N1 - SubjectsTermNotLitGenreText - Risk assessment; Rats; Mutagens; Education; Radiation; Cognitive ability; Ionizing radiation; Physiology; Neurotoxicity; Brain; Particulates DO - http://dx.doi.org/10.1002/em.22018 ER - TY - JOUR T1 - Microbiome Data Science: Understanding Our Microbial Planet AN - 1808641178; PQ0003165162 AB - Microbiology is experiencing a revolution brought on by recent developments in sequencing technology. The unprecedented volume of microbiome data being generated poses significant challenges that are currently hindering progress in the field. Here, we outline the major bottlenecks and propose a vision to advance microbiome research as a data-driven science. JF - Trends in Microbiology AU - Kyrpides, Nikos C AU - Eloe-Fadrosh, Emiley A AU - Ivanova, Natalia N AD - Prokaryotic Super Program, Department of Energy Joint Genome Institute, Walnut Creek, CA, USA Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 425 EP - 427 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 24 IS - 6 SN - 0966-842X, 0966-842X KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - microbiome KW - metagenomics KW - data science KW - data integration KW - data standards KW - data interoperability KW - Data processing KW - Vision KW - Reviews KW - A 01490:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808641178?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Trends+in+Microbiology&rft.atitle=Microbiome+Data+Science%3A+Understanding+Our+Microbial+Planet&rft.au=Kyrpides%2C+Nikos+C%3BEloe-Fadrosh%2C+Emiley+A%3BIvanova%2C+Natalia+N&rft.aulast=Kyrpides&rft.aufirst=Nikos&rft.date=2016-06-01&rft.volume=24&rft.issue=6&rft.spage=425&rft.isbn=&rft.btitle=&rft.title=Trends+in+Microbiology&rft.issn=0966842X&rft_id=info:doi/10.1016%2Fj.tim.2016.02.011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-08-17 N1 - SubjectsTermNotLitGenreText - Data processing; Vision; Reviews DO - http://dx.doi.org/10.1016/j.tim.2016.02.011 ER - TY - JOUR T1 - Toward 20 T magnetic resonance for human brain studies: opportunities for discovery and neuroscience rationale AN - 1808619578; PQ0003246576 AB - An initiative to design and build magnetic resonance imaging (MRI) and spectroscopy (MRS) instruments at 14 T and beyond to 20 T has been underway since 2012. This initiative has been supported by 22 interested participants from the USA and Europe, of which 15 are authors of this review. Advances in high temperature superconductor materials, advances in cryocooling engineering, prospects for non-persistent mode stable magnets, and experiences gained from large-bore, high-field magnet engineering for the nuclear fusion endeavors support the feasibility of a human brain MRI and MRS system with 1 ppm homogeneity over at least a 16-cm diameter volume and a bore size of 68 cm. Twelve neuroscience opportunities are presented as well as an analysis of the biophysical and physiological effects to be investigated before exposing human subjects to the high fields of 14 T and beyond. JF - Magnetic Resonance Materials in Biology, Physics, and Medicine AU - Budinger, Thomas F AU - Bird, Mark D AU - Frydman, Lucio AU - Long, Joanna R AU - Mareci, Thomas H AU - Rooney, William D AU - Rosen, Bruce AU - Schenck, John F AU - Schepkin, Victor D AU - Sherry, ADean AU - Sodickson, Daniel K AU - Springer, Charles S AU - Thulborn, Keith R AU - Uurbil, Kamil AU - Wald, Lawrence L AD - Lawrence Berkeley National Laboratory, University of California, Berkeley, CA, USA, tfbudinger@lbl.gov Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 617 EP - 639 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 29 IS - 3 SN - 0968-5243, 0968-5243 KW - Biotechnology and Bioengineering Abstracts KW - Temperature effects KW - Nervous system KW - Magnetic resonance imaging KW - Brain KW - N.M.R. KW - Spectroscopy KW - W 30910:Imaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808619578?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Magnetic+Resonance+Materials+in+Biology%2C+Physics%2C+and+Medicine&rft.atitle=Toward+20+T+magnetic+resonance+for+human+brain+studies%3A+opportunities+for+discovery+and+neuroscience+rationale&rft.au=Budinger%2C+Thomas+F%3BBird%2C+Mark+D%3BFrydman%2C+Lucio%3BLong%2C+Joanna+R%3BMareci%2C+Thomas+H%3BRooney%2C+William+D%3BRosen%2C+Bruce%3BSchenck%2C+John+F%3BSchepkin%2C+Victor+D%3BSherry%2C+ADean%3BSodickson%2C+Daniel+K%3BSpringer%2C+Charles+S%3BThulborn%2C+Keith+R%3BUurbil%2C+Kamil%3BWald%2C+Lawrence+L&rft.aulast=Budinger&rft.aufirst=Thomas&rft.date=2016-06-01&rft.volume=29&rft.issue=3&rft.spage=617&rft.isbn=&rft.btitle=&rft.title=Magnetic+Resonance+Materials+in+Biology%2C+Physics%2C+and+Medicine&rft.issn=09685243&rft_id=info:doi/10.1007%2Fs10334-016-0561-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Number of references - 142 N1 - Last updated - 2016-08-04 N1 - SubjectsTermNotLitGenreText - Temperature effects; Nervous system; Magnetic resonance imaging; Brain; N.M.R.; Spectroscopy DO - http://dx.doi.org/10.1007/s10334-016-0561-4 ER - TY - JOUR T1 - Developing long-term strategies to reduce energy use and CO sub(2) emissions-analysis of three mitigation scenarios for iron and steel production in China AN - 1808617190; PQ0003285975 AB - We perform a scenario analysis of three strategies for long-term energy savings and carbon dioxide (CO sub(2)) emission reductions in iron and steel production in China, using a linear optimization modeling framework industry sector energy efficiency modeling (ISEEM). The modeling includes annual projections for one base scenario representing business-as-usual (BAU) and three additional scenarios representing different strategies to reduce annual energy use and CO sub(2) emissions from 2010 to 2050. Specifically, the three scenarios for cost-optimization modeling include changing the production share (PS), predefining emission reduction (ER) target, and stipulating carbon emission pricing (CP), respectively. While the three strategies are projected to result in similar annual energy savings by approximately 15 % compared to that of the BAU scenario in year 2050, the carbon emission pricing strategy brings about the highest annual energy savings in the medium term (e.g., 2025). In addition, adopting carbon emission pricing strategy will result in the highest emission reduction from BAU with much higher costs, i.e., by 20 % in 2025 and 41 % in 2050, while adopting either PS or ER strategies will result in a moderate level of emission reduction from BAU, i.e., by approximately 4 % in 2025 and 14 % in 2050. The analysis of China's national strategies to reduce energy use and emissions provides important implications for global mitigation strategies. JF - Mitigation and Adaptation Strategies for Global Change AU - Karali, Nihan AU - Xu, Tengfang AU - Sathaye, Jayant AD - Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, One Cyclotron Road, MS 90R2000, Berkeley, CA, 94720, USA, timxu818@gmail.com Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 699 EP - 719 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 21 IS - 5 SN - 1381-2386, 1381-2386 KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Environment Abstracts KW - Mitigation KW - Pricing KW - Costs KW - Carbon KW - Emissions KW - Adaptation KW - Steel KW - Energy efficiency KW - Adaptations KW - Energy conservation KW - Emission control KW - Energy consumption KW - Metal industry KW - Adaptability KW - Energy KW - China, People's Rep. KW - Carbon dioxide KW - Environment management KW - Iron KW - Optimization KW - Carbon Dioxide KW - Q5 08503:Characteristics, behavior and fate KW - SW 0810:General KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808617190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mitigation+and+Adaptation+Strategies+for+Global+Change&rft.atitle=Developing+long-term+strategies+to+reduce+energy+use+and+CO+sub%282%29+emissions-analysis+of+three+mitigation+scenarios+for+iron+and+steel+production+in+China&rft.au=Karali%2C+Nihan%3BXu%2C+Tengfang%3BSathaye%2C+Jayant&rft.aulast=Karali&rft.aufirst=Nihan&rft.date=2016-06-01&rft.volume=21&rft.issue=5&rft.spage=699&rft.isbn=&rft.btitle=&rft.title=Mitigation+and+Adaptation+Strategies+for+Global+Change&rft.issn=13812386&rft_id=info:doi/10.1007%2Fs11027-014-9615-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Number of references - 52 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Pricing; Adaptations; Carbon; Carbon dioxide; Iron; Environment management; Energy efficiency; Adaptability; Mitigation; Energy conservation; Emissions; Emission control; Energy consumption; Metal industry; Costs; Energy; Adaptation; Steel; Optimization; Carbon Dioxide; China, People's Rep. DO - http://dx.doi.org/10.1007/s11027-014-9615-y ER - TY - JOUR T1 - The economic effect of efficiency programs on energy consumers and producers AN - 1798734781; PQ0003086026 AB - An increase in the efficiency of natural gas fired residential appliances allows users to realize the same level of service, heating water for example, while using less natural gas. In addition to this technological benefit to the residential sector, the reduced demand for natural gas depresses the price of natural gas, resulting in pecuniary gains to other energy consumers and pecuniary losses to energy producers. The question we address in this study is whether purely pecuniary effects, those that follow from the price changes elicited by lower usage of natural gas, should enter the debate concerning the implementation of energy efficiency programs. To that end, we explore the price and social welfare impacts of natural gas energy efficiency standards by evaluating the impacts of a specific efficiency standard using the National Energy Modeling System. Our analysis indicates that purely pecuniary losses to producers are largely offset by pecuniary benefits to consumers. Our analysis also provides useful insight into the sources of these benefits and losses. Although our results are based on a specific model and efficiency standard, we believe that the results generalize to other efficiency programs and would be reproduced using other energy models. JF - Energy Efficiency AU - Carnall, Michael AU - Dale, Larry AU - Lekov, Alex AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Rd. MS 90-4000, Berkeley, CA, 94720, USA, MACarnall@lbl.gov Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 647 EP - 662 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 9 IS - 3 SN - 1570-646X, 1570-646X KW - Environment Abstracts KW - Energy efficiency KW - Energy KW - Economics KW - Residential areas KW - Natural gas KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1798734781?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Efficiency&rft.atitle=The+economic+effect+of+efficiency+programs+on+energy+consumers+and+producers&rft.au=Carnall%2C+Michael%3BDale%2C+Larry%3BLekov%2C+Alex&rft.aulast=Carnall&rft.aufirst=Michael&rft.date=2016-06-01&rft.volume=9&rft.issue=3&rft.spage=647&rft.isbn=&rft.btitle=&rft.title=Energy+Efficiency&rft.issn=1570646X&rft_id=info:doi/10.1007%2Fs12053-015-9390-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-06-01 N1 - Number of references - 37 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Energy efficiency; Energy; Economics; Residential areas; Natural gas DO - http://dx.doi.org/10.1007/s12053-015-9390-y ER - TY - JOUR T1 - Charged particle mutagenesis at low dose and fluence in mouse splenic T cells. AN - 1793214961; 27055360 AB - High-energy heavy charged particles (HZE ions) found in the deep space environment can significantly affect human health by inducing mutations and related cancers. To better understand the relation between HZE ion exposure and somatic mutation, we examined cell survival fraction, Aprt mutant frequencies, and the types of mutations detected for mouse splenic T cells exposed in vivo to graded doses of densely ionizing (48)Ti ions (1GeV/amu, LET=107 keV/μm), (56)Fe ions (1GeV/amu, LET=151 keV/μm) ions, or sparsely ionizing protons (1GeV, LET=0.24 keV/μm). The lowest doses for (48)Ti and (56)Fe ions were equivalent to a fluence of approximately 1 or 2 particle traversals per nucleus. In most cases, Aprt mutant frequencies in the irradiated mice were not significantly increased relative to the controls for any of the particles or doses tested at the pre-determined harvest time (3-5 months after irradiation). Despite the lack of increased Aprt mutant frequencies in the irradiated splenocytes, a molecular analysis centered on chromosome 8 revealed the induction of radiation signature mutations (large interstitial deletions and complex mutational patterns), with the highest levels of induction at 2 particles nucleus for the (48)Ti and (56)Fe ions. In total, the results show that densely ionizing HZE ions can induce characteristic mutations in splenic T cells at low fluence, and that at least a subset of radiation-induced mutant cells are stably retained despite the apparent lack of increased mutant frequencies at the time of harvest. JF - Mutation research AU - Grygoryev, Dmytro AU - Gauny, Stacey AU - Lasarev, Michael AU - Ohlrich, Anna AU - Kronenberg, Amy AU - Turker, Mitchell S AD - Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, United States. ; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States. ; Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, United States; Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR 97239, United States. Electronic address: turkerm@ohsu.edu. Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 32 EP - 40 VL - 788 KW - Index Medicus KW - Aprt mutation KW - Charged particle mutagenesis KW - Radiation signature mutations KW - Splenic T cells UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793214961?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=Sequencing+of+diverse+mandarin%2C+pummelo+and+orange+genomes+reveals+complex+history+of+admixture+during+citrus+domestication&rft.au=Wu%2C+G+Albert%3BProchnik%2C+Simon%3BJenkins%2C+Jerry%3BSalse%2C+Jerome%3BHellsten%2C+Uffe%3BMurat%2C+Florent%3BPerrier%2C+Xavier%3BRuiz%2C+Manuel%3BScalabrin%2C+Simone%3BTerol%2C+Javier%3BTakita%2C+Marco+Aurelio%3BLabadie%2C+Karine%3BPoulain%2C+Julie%3BCouloux%2C+Arnaud%3BJabbari%2C+Kamel%3BCattonaro%2C+Federica%3BDel+Fabbro%2C+Cristian%3BPinosio%2C+Sara%3BZuccolo%2C+Andrea%3BChapman%2C+Jarrod%3BGrimwood%2C+Jane%3BTadeo%2C+Francisco+R%3BEstornell%2C+Leandro+H%3BMunoz-Sanz%2C+Juan+V%3BIbanez%2C+Victoria%3BHerrero-Ortega%2C+Amparo%3BAleza%2C+Pablo%3BPerez-Perez%2C+Julian%3BRamon%2C+Daniel%3BBrunel%2C+Dominique%3BLuro%2C+Francois%3BChen%2C+Chunxian%3BFarmerie%2C+William+G%3BDesany%2C+Brian%3BKodira%2C+Chinnappa%3BMohiuddin%2C+Mohammed%3BHarkins%2C+Tim%3BFredrikson%2C+Karin%3BBurns%2C+Paul%3BLomsadze%2C+Alexandre%3BBorodovsky%2C+Mark%3BReforgiato%2C+Giuseppe%3BFreitas-Astua%2C+Juliana%3BQuetier%2C+Francis%3BNavarro%2C+Luis%3BRoose%2C+Mikeal%3BWincker%2C+Patrick%3BSchmutz%2C+Jeremy%3BMorgante%2C+Michele%3BMachado%2C+Marcos+Antonio%3Bet.+al.&rft.aulast=Wu&rft.aufirst=G&rft.date=2014-07-01&rft.volume=32&rft.issue=7&rft.spage=656&rft.isbn=&rft.btitle=&rft.title=Nature+Biotechnology&rft.issn=10870156&rft_id=info:doi/10.1038%2Fnbt.2906 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-05-31 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1016/j.mrfmmm.2016.03.004 ER - TY - JOUR T1 - Cooking-related PM sub(2.5) and acrolein measured in grocery stores and comparison with other retail types AN - 1790953429; PQ0003088600 AB - We measured particulate matter (PM), acrolein, and other indoor air contaminants in eight visits to grocery stores in California. Retail stores of other types (hardware, furniture, and apparel) were also sampled on additional visits. Based on tracer gas decay data, most stores had adequate ventilation according to minimum ventilation rate standards. Grocery stores had significantly higher concentrations of acrolein, fine and ultrafine PM, compared to other retail stores, likely attributable to cooking. Indoor concentrations of PM sub(2.5) and acrolein exceeded health guidelines in all tested grocery stores. Acrolein emission rates to indoors in grocery stores had a mean estimate about 30 times higher than in other retail store types. About 80% of the indoor PM sub(2.5) measured in grocery stores was emitted indoors, compared to only 20% for the other retail store types. Calculations suggest a substantial increase in outdoor air ventilation rate by a factor of three from current level is needed to reduce indoor acrolein concentrations. Alternatively, acrolein emission to indoors needs to be reduced 70% by better capturing of cooking exhaust. To maintain indoor PM sub(2.5) below the California annual ambient standard of 12 mu g/m super(3), grocery stores need to use air filters with an efficiency rating higher than the MERV 8 air filters commonly used today. JF - Indoor Air AU - Chan, W R AU - Sidheswaran, M AU - Sullivan, D P AU - Cohn, S AU - Fisk, W J AD - Indoor Environment Group, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 489 EP - 500 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 26 IS - 3 SN - 0905-6947, 0905-6947 KW - Pollution Abstracts; Environment Abstracts KW - Particle size KW - Pollutant removal KW - Ventilation KW - Guidelines KW - Particulates KW - Tracers KW - Air purification KW - INE, USA, California KW - Cooking KW - Emissions KW - Decay KW - Indoor environments KW - Exhaust emissions KW - P 0000:AIR POLLUTION KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790953429?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Indoor+Air&rft.atitle=Cooking-related+PM+sub%282.5%29+and+acrolein+measured+in+grocery+stores+and+comparison+with+other+retail+types&rft.au=Chan%2C+W+R%3BSidheswaran%2C+M%3BSullivan%2C+D+P%3BCohn%2C+S%3BFisk%2C+W+J&rft.aulast=Chan&rft.aufirst=W&rft.date=2016-06-01&rft.volume=26&rft.issue=3&rft.spage=489&rft.isbn=&rft.btitle=&rft.title=Indoor+Air&rft.issn=09056947&rft_id=info:doi/10.1111%2Fina.12218 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Particle size; Tracers; Pollutant removal; Ventilation; Air purification; Guidelines; Cooking; Emissions; Particulates; Decay; Indoor environments; Exhaust emissions; INE, USA, California DO - http://dx.doi.org/10.1111/ina.12218 ER - TY - JOUR T1 - Daphnia magna transcriptome by RNA-Seq across 12 environmental stressors. AN - 1788538805; 27164179 AB - The full exploration of gene-environment interactions requires model organisms with well-characterized ecological interactions in their natural environment, manipulability in the laboratory and genomic tools. The waterflea Daphnia magna is an established ecological and toxicological model species, central to the food webs of freshwater lentic habitats and sentinel for water quality. Its tractability and cyclic parthenogenetic life-cycle are ideal to investigate links between genes and the environment. Capitalizing on this unique model system, the STRESSFLEA consortium generated a comprehensive RNA-Seq data set by exposing two inbred genotypes of D. magna and a recombinant cross of these genotypes to a range of environmental perturbations. Gene models were constructed from the transcriptome data and mapped onto the draft genome of D. magna using EvidentialGene. The transcriptome data generated here, together with the available draft genome sequence of D. magna and a high-density genetic map will be a key asset for future investigations in environmental genomics. JF - Scientific data AU - Orsini, Luisa AU - Gilbert, Donald AU - Podicheti, Ram AU - Jansen, Mieke AU - Brown, James B AU - Solari, Omid Shams AU - Spanier, Katina I AU - Colbourne, John K AU - Rush, Douglas AU - Decaestecker, Ellen AU - Asselman, Jana AU - De Schamphelaere, Karel A C AU - Ebert, Dieter AU - Haag, Christoph R AU - Kvist, Jouni AU - Laforsch, Christian AU - Petrusek, Adam AU - Beckerman, Andrew P AU - Little, Tom J AU - Chaturvedi, Anurag AU - Pfrender, Michael E AU - De Meester, Luc AU - Frilander, Mikko J AD - Environmental Genomics Group, School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK. ; Biology Department, Indiana University, 1001 E. Third Street, Bloomington, Indiana 47405, USA. ; School of Informatics and Computing, Indiana University, 919 E. Tenth Street, Bloomington, Indiana 47408, USA. ; Laboratory of Aquatic Ecology, Evolution and Conservation, University of Leuven, Ch. Deberiotstraat 32, Leuven 3000, Belgium. ; Department of Genome Dynamics Lawrence Berkeley National Laboratory, University of California Berkeley, Berkeley, California 94720, USA. ; Center for Genomics and Bioinformatics, Indiana University, School of Informatics and Computing, Indiana University, 1001 E. Third Street, 919 E. Tenth Street, Bloomington, Indiana 47408, USA. ; Aquatic Biology, Interdisciplinary research Facility Life Sciences KU Leuven Campus Kortrijk, E. Sabbelaan 53, Kortrijk B-8500, Belgium. ; Laboratory of Environmental Toxicology and Aquatic Ecology, GhEnToxLab,Ghent University, Ghent, Belgium. ; Universität Basel, Zoologisches Institut, Vesalgasse 1, Basel 4051, Switzerland. ; Centre d'Ecologie Fonctionnelle et Evolutive-CEFE UMR 5175, CNRS-Université de Montpellier-Université Paul-Valéry Montpellier-EPHE, campus CNRS, 1919, route de Mende, Montpellier, Cedex 5 34293, France. ; Institute of Biotechnology, University of Helsinki, PO Box 56, Viikinkaari 9, 00014, Helsinki Finland. ; Animal Ecology I and Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth 95440, Germany. ; Department of Ecology, Faculty of Science, Charles University in Prague, Viničná 7, Prague CZ-12844, Czech Republic. ; Department of Animal and Plant Science, University of Sheffield Alfred Denny Building, Western Bank, Sheffield S10 2TN, UK. ; Ashworth Laboratories, Institute of Evolutionary Biology, University of Edinburgh, Kings Buildings, Edinburgh EH9 3JT, UK. ; Department of Biological Sciences and Environmental Change Initiative, Galvin Life Science Center, Notre Dame, Indiana 46556, USA. Y1 - 2016/05/10/ PY - 2016 DA - 2016 May 10 SP - 160030 VL - 3 KW - RNA KW - 63231-63-0 KW - Index Medicus KW - Animals KW - Base Sequence KW - Gene-Environment Interaction KW - Databases, Genetic KW - RNA -- genetics KW - Daphnia -- genetics KW - Transcriptome KW - Genome UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1788538805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Scientific+data&rft.atitle=Daphnia+magna+transcriptome+by+RNA-Seq+across+12+environmental+stressors.&rft.au=Orsini%2C+Luisa%3BGilbert%2C+Donald%3BPodicheti%2C+Ram%3BJansen%2C+Mieke%3BBrown%2C+James+B%3BSolari%2C+Omid+Shams%3BSpanier%2C+Katina+I%3BColbourne%2C+John+K%3BRush%2C+Douglas%3BDecaestecker%2C+Ellen%3BAsselman%2C+Jana%3BDe+Schamphelaere%2C+Karel+A+C%3BEbert%2C+Dieter%3BHaag%2C+Christoph+R%3BKvist%2C+Jouni%3BLaforsch%2C+Christian%3BPetrusek%2C+Adam%3BBeckerman%2C+Andrew+P%3BLittle%2C+Tom+J%3BChaturvedi%2C+Anurag%3BPfrender%2C+Michael+E%3BDe+Meester%2C+Luc%3BFrilander%2C+Mikko+J&rft.aulast=Orsini&rft.aufirst=Luisa&rft.date=2016-05-10&rft.volume=16&rft.issue=8&rft.spage=3830&rft.isbn=&rft.btitle=&rft.title=Green+Chemistry&rft.issn=14639262&rft_id=info:doi/10.1039%2Fc4gc00373j LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-12-16 N1 - Date created - 2016-05-11 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1038/sdata.2016.30 ER - TY - JOUR T1 - Assessment of shallow aquifer remediation capacity under different groundwater management conditions in CGS field AN - 1832672381; 782376-24 AB - Because of unknown faults and fractures in the overlying rock, CO (sub 2) stored deep underground may move upward, and the intrusion may impact shallow groundwater quality. After leakage of CO (sub 2) has ceased, the affected aquifer may show remediation capacity under natural conditions and injections and extractions. In this study, the reactive transport modeling software TOUGHREACT was used to simulate the remediation capacity of a study aquifer. The simulation results show that the intrusion of leaked CO (sub 2) would decrease the pH of the target aquifer and trigger the dissolution of calcite minerals. After CO (sub 2) leakage has ceased, the pH would increase as would the concentration of Ca because of the dissolution of calcite along the flow path. Scenario simulation results of amelioration of groundwater quality by water injection and extraction show that single injection is the best option and a combination approach of injection and extraction could control the range of the affected area. The pH value should not be regarded as the single indicator for remediation capacity assessment. Parameter sensitive analysis results show that the rates of injection and extraction affect the repair results significantly. Copyright 2016 Saudi Society for Geosciences JF - Arabian Journal of Geosciences AU - Shanghai, Du AU - Zheng, Liange AU - Wenjing, Zhang Y1 - 2016/05// PY - 2016 DA - May 2016 EP - Article 448 PB - Springer, Berlin-Heidelberg VL - 9 IS - 6 SN - 1866-7511, 1866-7511 KW - pollutants KW - water management KW - pollution KW - hydrochemistry KW - remediation KW - ground water KW - carbon dioxide KW - calcite KW - aquifers KW - shallow aquifers KW - risk assessment KW - leaky aquifers KW - carbonates KW - pH KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832672381?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Arabian+Journal+of+Geosciences&rft.atitle=Assessment+of+shallow+aquifer+remediation+capacity+under+different+groundwater+management+conditions+in+CGS+field&rft.au=Shanghai%2C+Du%3BZheng%2C+Liange%3BWenjing%2C+Zhang&rft.aulast=Shanghai&rft.aufirst=Du&rft.date=2016-05-01&rft.volume=9&rft.issue=6&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Arabian+Journal+of+Geosciences&rft.issn=18667511&rft_id=info:doi/10.1007%2Fs12517-016-2479-6 L2 - http://www.springer.com/earth+sciences/journal/12517 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Number of references - 44 N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - aquifers; calcite; carbon dioxide; carbonates; ground water; hydrochemistry; leaky aquifers; pH; pollutants; pollution; remediation; risk assessment; shallow aquifers; water management DO - http://dx.doi.org/10.1007/s12517-016-2479-6 ER - TY - JOUR T1 - Time-series analysis of surface deformation at Brady Hot Springs geothermal field (Nevada) using interferometric synthetic aperture radar AN - 1819893996; 2016-080248 AB - We analyze interferometric synthetic aperture radar (InSAR) data acquired between 2004 and 2014, by the ERS-2, Envisat, ALOS and TerraSAR-X/TanDEM-X satellite missions to measure and characterize time-dependent deformation at the Brady Hot Springs geothermal field in western Nevada due to extraction of fluids. The long axis of the approximately 4 km by approximately 1.5 km elliptical subsiding area coincides with the strike of the dominant normal fault system at Brady. Within this bowl of subsidence, the interference pattern shows several smaller features with length scales of the order of approximately 1 km. This signature occurs consistently in all of the well-correlated interferometric pairs spanning several months. Results from inverse modeling suggest that the deformation is a result of volumetric contraction in shallow units, no deeper than 600 m, likely associated with damaged regions where fault segments mechanically interact. Such damaged zones are expected to extend downward along steeply dipping fault planes, providing a high permeability conduit to the production wells. Using time series analysis, we test the hypothesis that geothermal production drives the observed deformation. We find a good correlation between the observed deformation rate and the rate of production in the shallow wells. We also explore mechanisms that could potentially cause the observed deformation, including thermal contraction of rock, decline in pore pressure and dissolution of minerals over time. Abstract Copyright (2016) Elsevier, B.V. JF - Geothermics AU - Ali, S T AU - Akerley, J AU - Baluyut, E C AU - Cardiff, M AU - Davatzes, N C AU - Feigl, Kurt L AU - Foxall, W AU - Fratta, D AU - Mellors, R J AU - Spielman, P AU - Wang, H F AU - Zemach, E Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 114 EP - 120 PB - Elsevier, Oxford-New York VL - 61 SN - 0375-6505, 0375-6505 KW - United States KW - time series analysis KW - statistical analysis KW - radar methods KW - mathematical models KW - geothermal engineering KW - Brady Hot Springs KW - thermal waters KW - ground water KW - geothermal energy KW - geothermal fields KW - Hot Springs Mountains KW - SAR KW - springs KW - InSAR KW - hot springs KW - Nevada KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819893996?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geothermics&rft.atitle=Time-series+analysis+of+surface+deformation+at+Brady+Hot+Springs+geothermal+field+%28Nevada%29+using+interferometric+synthetic+aperture+radar&rft.au=Ali%2C+S+T%3BAkerley%2C+J%3BBaluyut%2C+E+C%3BCardiff%2C+M%3BDavatzes%2C+N+C%3BFeigl%2C+Kurt+L%3BFoxall%2C+W%3BFratta%2C+D%3BMellors%2C+R+J%3BSpielman%2C+P%3BWang%2C+H+F%3BZemach%2C+E&rft.aulast=Ali&rft.aufirst=S&rft.date=2016-05-01&rft.volume=61&rft.issue=&rft.spage=114&rft.isbn=&rft.btitle=&rft.title=Geothermics&rft.issn=03756505&rft_id=info:doi/10.1016%2Fj.geothermics.2016.01.008 L2 - http://www.sciencedirect.com/science/journal/03756505 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 58 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-09-16 N1 - CODEN - GTMCAT N1 - SubjectsTermNotLitGenreText - Brady Hot Springs; geothermal energy; geothermal engineering; geothermal fields; ground water; hot springs; Hot Springs Mountains; InSAR; mathematical models; Nevada; radar methods; SAR; springs; statistical analysis; thermal waters; time series analysis; United States DO - http://dx.doi.org/10.1016/j.geothermics.2016.01.008 ER - TY - JOUR T1 - Equation of state and spin crossover of (Mg,Fe)O at high pressure, with implications for explaining topographic relief at the core-mantle boundary AN - 1812215249; 2016-070885 AB - Iron-bearing periclase is thought to represent a significant fraction of Earth's lower mantle. However, the concentration of iron in (Mg,Fe)O is not well constrained at all mantle depths. Therefore, understanding the effect of iron on the density and elastic properties of this phase plays a major role in interpreting seismically observed complexity in the deep Earth. Here we examine the high-pressure behavior of polycrystalline (Mg,Fe)O containing 48 mol% FeO, loaded hydrostatically with neon as a pressure medium. Using X-ray diffraction and synchrotron Mossbauer spectroscopy, we measure the equation of state to about 83 GPa and hyperfine parameters to 107 GPa at 300 K. A gradual volume drop corresponding to a high-spin (HS) to low-spin (LS) crossover is observed between approximately 45 and 83 GPa with a volume drop of 1.85% at 68.8(2.7) GPa, the calculated spin transition pressure. Using a newly formulated spin crossover equation of state, the resulting zero-pressure isothermal bulk modulus K (sub 0T,HS) for the HS state is 160(2) GPa with a K' (sub 0T,HS) of 4.12(14) and a V (sub 0,HS) of 77.29(0) A (super 3) . For the LS state, the K (sub 0T,LS) is 173(13) GPa with a K' (sub 0T,LS) fixed to 4 and a V (sub 0,LS) of 73.64(94) A (super 3) To confirm that the observed volume drop is due to a spin crossover, the quadrupole splitting (QS) and isomer shift (IS) are determined as a function of pressure. At low pressures, the Mossbauer spectra are well explained with two Fe (super 2+) -like sites. At pressure between 44 and 84, two additional Fe (super 2+) -like sites with a QS of 0 are required, indicative of low-spin iron. Above 84 GPa, two low-spin Fe (super 2+) -like sites with increasing weight fraction explain the data well, signifying the completion of the spin crossover. To systematically compare the effect of iron on the equation of state parameters for (Mg,Fe)O, a spin crossover equation of state was fitted to the pressure-volume data of previous measurements. Our results show that K (sub 0,HS) is insensitive to iron concentration between 10 to 60 mol% FeO, while the spin transition pressure and width generally increases from about 50-80 and 2-25 GPa, respectively. A key implication is that iron-rich (Mg,Fe)O at the core-mantle boundary would likely contain a significant fraction of high-spin (less dense) iron, contributing a positive buoyancy to promote observable topographic relief in tomographic images of the lowermost mantle. JF - American Mineralogist AU - Solomatova, Natalia V AU - Jackson, Jennifer M AU - Sturhahn, Wolfgang AU - Wicks, June K AU - Zhao, Jiyong AU - Toellner, Thomas S AU - Kalkan, Bora AU - Steinhardt, William M Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 1084 EP - 1093 PB - Mineralogical Society of America, Washington, DC VL - 101 IS - 5 SN - 0003-004X, 0003-004X KW - interior KW - experimental studies KW - pressure KW - X-ray diffraction data KW - mantle KW - high pressure KW - core-mantle boundary KW - synchrotron radiation KW - outer core KW - lower mantle KW - low-velocity zones KW - oxides KW - core KW - spectra KW - equations of state KW - Mossbauer spectra KW - ferropericlase KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812215249?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Equation+of+state+and+spin+crossover+of+%28Mg%2CFe%29O+at+high+pressure%2C+with+implications+for+explaining+topographic+relief+at+the+core-mantle+boundary&rft.au=Solomatova%2C+Natalia+V%3BJackson%2C+Jennifer+M%3BSturhahn%2C+Wolfgang%3BWicks%2C+June+K%3BZhao%2C+Jiyong%3BToellner%2C+Thomas+S%3BKalkan%2C+Bora%3BSteinhardt%2C+William+M&rft.aulast=Solomatova&rft.aufirst=Natalia&rft.date=2016-05-01&rft.volume=101&rft.issue=5&rft.spage=1084&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2016-5510 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 63 N1 - PubXState - DC N1 - Document feature - illus. incl. 8 tables N1 - Last updated - 2016-08-18 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - core; core-mantle boundary; equations of state; experimental studies; ferropericlase; high pressure; interior; low-velocity zones; lower mantle; mantle; Mossbauer spectra; outer core; oxides; pressure; spectra; synchrotron radiation; X-ray diffraction data DO - http://dx.doi.org/10.2138/am-2016-5510 ER - TY - JOUR T1 - Temperature calibration and phylogenetically distinct distributions for fresh water alkenones; evidence from northern Alaskan lakes AN - 1800396459; 2016-056152 AB - Alkenones are a class of unsaturated long-chain ketone biomarkers that have been used to reconstruct sea surface temperature and, more recently, continental temperature, by way of alkenone unsaturation indices (e.g. U (sub 37) (super K) and U (sub 37) (super K') ). Alkenones are frequently found in brackish and saline lakes, however species effects confound temperature reconstructions when multiple alkenone-producing species with different temperature responses are present. Interestingly, available genetic data indicate that numerous freshwater lakes host a distinct phylotype of alkenone-producing haptophyte algae (the Group I or Greenland phylotype), providing evidence that species effects may be diminished in freshwater lakes. These findings encourage further investigation of alkenone paleotemperature proxies in freshwater systems. Here, we investigated lakes from northern Alaska (n = 35) and show that alkenones commonly occurred in freshwater lakes, where they featured distinct distributions, characterized by dominant C (sub 37:4) alkenones and a series of tri-unsaturated alkenone isomers. The distributions were characteristic of Group I-type alkenone distributions previously identified in Greenland and North America. Our analysis of suspended particulate matter from Toolik Lake (68 degrees 38'N, 149 degrees 36'W) yielded the first in situ freshwater U (sub 37) (super K) calibration (U (sub 37) (super K) = 0.021 * T - 0.68; r (super 2) = 0.85; n = 52; RMSE = + or -1.37 degrees C). We explored the environmental significance of the tri-unsaturated isomers using our northern Alaskan lakes dataset in conjunction with new data from haptophyte cultures and Canadian surface sediments. Our results show that these temperature-sensitive isomers are biomarkers for the Group I phylotype and indicators of multiple-species effects. Together, these findings highlight freshwater lakes as valuable targets for continental alkenone-based paleotemperature reconstructions and demonstrate the significance of the recently discovered tri-unsaturated isomers. Abstract Copyright (2016) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Longo, William M AU - Theroux, Susanna AU - Giblin, Anne E AU - Zheng, Yinsui AU - Dillon, James T AU - Huang, Yongsong Y1 - 2016/05/01/ PY - 2016 DA - 2016 May 01 SP - 177 EP - 196 PB - Elsevier, New York, NY VL - 180 SN - 0016-7037, 0016-7037 KW - United States KW - phylogeny KW - biochemistry KW - statistical analysis KW - northern Alaska KW - lakes KW - gas chromatograms KW - fresh water KW - calibration KW - Toolik Lake KW - biomarkers KW - temperature KW - environmental management KW - organic compounds KW - isomers KW - chromatograms KW - mathematical methods KW - sediments KW - alkenones KW - Alaska KW - reconstruction KW - chemical composition KW - ketones KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396459?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Temperature+calibration+and+phylogenetically+distinct+distributions+for+fresh+water+alkenones%3B+evidence+from+northern+Alaskan+lakes&rft.au=Longo%2C+William+M%3BTheroux%2C+Susanna%3BGiblin%2C+Anne+E%3BZheng%2C+Yinsui%3BDillon%2C+James+T%3BHuang%2C+Yongsong&rft.aulast=Longo&rft.aufirst=William&rft.date=2016-05-01&rft.volume=180&rft.issue=&rft.spage=177&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.02.019 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 75 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-06-30 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Alaska; alkenones; biochemistry; biomarkers; calibration; chemical composition; chromatograms; environmental management; fresh water; gas chromatograms; isomers; ketones; lakes; mathematical methods; northern Alaska; organic compounds; phylogeny; reconstruction; sediments; statistical analysis; temperature; Toolik Lake; United States DO - http://dx.doi.org/10.1016/j.gca.2016.02.019 ER - TY - JOUR T1 - Lattice Boltzmann simulation of water isotope fractionation during ice crystal growth in clouds AN - 1800395922; 2016-056157 AB - We describe a lattice Boltzmann (LB) method for simulating water isotope fractionation during diffusion-limited ice crystal growth by vapor deposition from water-oversaturated air. These conditions apply to the growth of snow crystals in clouds where the vapor composition is controlled by the presence of both ice crystals and water droplets. Modeling of water condensation with the LB method has the advantage of allowing concentration fields to evolve based on local conditions so that the controls on grain shapes of the condensed phase can be studied simultaneously with the controls on isotopic composition and growth rate. Water isotope fractionation during snow crystal growth involves kinetic effects due to diffusion of water vapor in air, which requires careful consideration of the boundary conditions at the ice-vapor interface. The boundary condition is relatively simple for water isotopes because the molecular exchange rate for water at the interface is large compared to the crystal growth rate. Our results for the bulk crystal isotopic composition are consistent with simpler models using analytical solutions for radial geometry. However, the model results are sufficiently different for oxygen isotopes that they could affect the interpretation of D-excess values of snow and ice. The extent of vapor oversaturation plays a major role in determining the water isotope fractionation as well as the degree of dendritic growth. Departures from isotopic equilibrium increase at colder temperatures as diffusivity decreases. Dendritic crystals are isotopically heterogeneous. Isotopic variations within individual snow crystals could yield information on the microphysics of ice condensation as well as on the accommodation or sticking coefficient of water associated with vapor deposition. Our results are ultimately a first step in implementing LB models for kinetically controlled condensation or precipitation reactions, but needs to be extended also to cases where the molecular exchange rate is comparable to the crystal growth rate. This approach could also be applicable to aerosol chemical evolution. Abstract Copyright (2016) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Lu, Guoping AU - DePaolo, Donald J Y1 - 2016/05/01/ PY - 2016 DA - 2016 May 01 SP - 271 EP - 283 PB - Elsevier, New York, NY VL - 180 SN - 0016-7037, 0016-7037 KW - isotope fractionation KW - oxygen KW - lattice KW - isotopes KW - water vapor KW - crystal growth KW - atmospheric precipitation KW - simulation KW - stable isotopes KW - water-rock interaction KW - phase equilibria KW - ice KW - snow KW - kinetics KW - water KW - isotope ratios KW - O-18/O-16 KW - models KW - saturation KW - deposition KW - D/H KW - hydrogen KW - mathematical methods KW - lattice Boltzmann method KW - crystallization KW - aerosols KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800395922?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Lattice+Boltzmann+simulation+of+water+isotope+fractionation+during+ice+crystal+growth+in+clouds&rft.au=Lu%2C+Guoping%3BDePaolo%2C+Donald+J&rft.aulast=Lu&rft.aufirst=Guoping&rft.date=2016-05-01&rft.volume=180&rft.issue=&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2015.11.048 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 45 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-11-17 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aerosols; atmospheric precipitation; lattice Boltzmann method; crystal growth; crystallization; D/H; deposition; hydrogen; ice; isotope fractionation; isotope ratios; isotopes; kinetics; lattice; mathematical methods; models; O-18/O-16; oxygen; phase equilibria; saturation; simulation; snow; stable isotopes; water; water vapor; water-rock interaction DO - http://dx.doi.org/10.1016/j.gca.2015.11.048 ER - TY - JOUR T1 - Characterization of demand response in the commercial, industrial, and residential sectors in the United States AN - 1798737980; PQ0002987164 AB - The goal of this study is to provide an overview of demand response (DR) technologies, including standards and end uses, in the United States and describe resource characteristics and the attributes of 14 specific DR resources in the U.S. commercial, residential, and industrial sectors. The attributes reviewed for the end uses being considered are response frequency, response time, the need for and impacts of energy pre- or recharge, the cost of enabling a resource to respond to a load-curtailment signal, and the magnitude of load curtailment in a given resource. We also describe controls and communications technologies that can enable end uses to participate in DR programs. The characterization was initially developed as a foundational work to quantify hourly availability of DR resources from the selected end uses followed by a multi-laboratory effort that quantified DR's value within the Western Interconnection super(a). WIREs Energy Environ 2016, 5:288-304. doi: 10.1002/wene.176 For further resources related to this article, please visit the WIREs website . JF - Wiley Interdisciplinary Reviews: Energy and Environment AU - Kiliccote, Sila AU - Olsen, Daniel AU - Sohn, Michael D AU - Piette, Mary Ann AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA. Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 288 EP - 304 PB - John Wiley & Sons, Inc., 111 River Street Hoboken NJ 07030 United States VL - 5 IS - 3 SN - 2041-8396, 2041-8396 KW - Environment Abstracts KW - USA KW - Communications KW - Energy KW - Reviews KW - Residential areas KW - Technology KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1798737980?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wiley+Interdisciplinary+Reviews%3A+Energy+and+Environment&rft.atitle=Characterization+of+demand+response+in+the+commercial%2C+industrial%2C+and+residential+sectors+in+the+United+States&rft.au=Kiliccote%2C+Sila%3BOlsen%2C+Daniel%3BSohn%2C+Michael+D%3BPiette%2C+Mary+Ann&rft.aulast=Kiliccote&rft.aufirst=Sila&rft.date=2016-05-01&rft.volume=5&rft.issue=3&rft.spage=288&rft.isbn=&rft.btitle=&rft.title=Wiley+Interdisciplinary+Reviews%3A+Energy+and+Environment&rft.issn=20418396&rft_id=info:doi/10.1002%2Fwene.176 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-06-01 N1 - Last updated - 2016-08-03 N1 - SubjectsTermNotLitGenreText - Communications; Reviews; Energy; Residential areas; Technology; USA DO - http://dx.doi.org/10.1002/wene.176 ER - TY - JOUR T1 - Harderian Gland Tumorigenesis: Low-Dose and LET Response. AN - 1790017270; 27092765 AB - Increased cancer risk remains a primary concern for travel into deep space and may preclude manned missions to Mars due to large uncertainties that currently exist in estimating cancer risk from the spectrum of radiations found in space with the very limited available human epidemiological radiation-induced cancer data. Existing data on human risk of cancer from X-ray and gamma-ray exposure must be scaled to the many types and fluences of radiations found in space using radiation quality factors and dose-rate modification factors, and assuming linearity of response since the shapes of the dose responses at low doses below 100 mSv are unknown. The goal of this work was to reduce uncertainties in the relative biological effect (RBE) and linear energy transfer (LET) relationship for space-relevant doses of charged-particle radiation-induced carcinogenesis. The historical data from the studies of Fry et al. and Alpen et al. for Harderian gland (HG) tumors in the female CB6F1 strain of mouse represent the most complete set of experimental observations, including dose dependence, available on a specific radiation-induced tumor in an experimental animal using heavy ion beams that are found in the cosmic radiation spectrum. However, these data lack complete information on low-dose responses below 0.1 Gy, and for chronic low-dose-rate exposures, and there are gaps in the LET region between 25 and 190 keV/μm. In this study, we used the historical HG tumorigenesis data as reference, and obtained HG tumor data for 260 MeV/u silicon (LET ∼70 keV/μm) and 1,000 MeV/u titanium (LET ∼100 keV/μm) to fill existing gaps of data in this LET range to improve our understanding of the dose-response curve at low doses, to test for deviations from linearity and to provide RBE estimates. Animals were also exposed to five daily fractions of 0.026 or 0.052 Gy of 1,000 MeV/u titanium ions to simulate chronic exposure, and HG tumorigenesis from this fractionated study were compared to the results from single 0.13 or 0.26 Gy acute titanium exposures. Theoretical modeling of the data show that a nontargeted effect model provides a better fit than the targeted effect model, providing important information at space-relevant doses of heavy ions. JF - Radiation research AU - Chang, Polly Y AU - Cucinotta, Francis A AU - Bjornstad, Kathleen A AU - Bakke, James AU - Rosen, Chris J AU - Du, Nicholas AU - Fairchild, David G AU - Cacao, Eliedonna AU - Blakely, Eleanor A AD - a   Biosciences Division, SRI International, Menlo Park, California 94025; ; c   Department of Health Physics and Diagnostic Sciences, University of Nevada, Las Vegas, Nevada 89154. ; b   Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720; and. Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 449 EP - 460 VL - 185 IS - 5 KW - Index Medicus KW - Space life sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790017270?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+research&rft.atitle=Harderian+Gland+Tumorigenesis%3A+Low-Dose+and+LET+Response.&rft.au=Chang%2C+Polly+Y%3BCucinotta%2C+Francis+A%3BBjornstad%2C+Kathleen+A%3BBakke%2C+James%3BRosen%2C+Chris+J%3BDu%2C+Nicholas%3BFairchild%2C+David+G%3BCacao%2C+Eliedonna%3BBlakely%2C+Eleanor+A&rft.aulast=Chang&rft.aufirst=Polly&rft.date=2016-05-01&rft.volume=185&rft.issue=5&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=Radiation+research&rft.issn=1938-5404&rft_id=info:doi/10.1667%2FRR14335.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-05-18 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1667/RR14335.1 ER - TY - JOUR T1 - Large-Eddy Simulation of Flow Through an Array of Cubes with Local Grid Refinement AN - 1787976436; PQ0002955136 AB - High resolution simulations of the transport of urban contaminants are important for disaster response and city planning. Large-eddy simulation (LES) and mesh refinement can each be used to decrease the computational cost of modelling, but combining these techniques can result in additional errors at grid-refinement interfaces. Here, we study the effect of the turbulence closure on the accuracy of LES results, for grids with mesh refinement, in a test case of flow through a periodic array of cubes. It is found that a mixed-model turbulence closure, using both an eddy viscosity and a scale similarity component, reduces energy accumulation at grid-refinement interfaces when used with explicit filtering of the advection term. The mixed model must be used with explicit filtering to control high wavenumber errors generated by the non-linear scale-similarity model. The results demonstrate that the turbulence closure mitigates errors associated with using LES on block-structured grids for urban-flow simulations. JF - Boundary-Layer Meteorology AU - Goodfriend, Elijah AU - Katopodes Chow, Fotini AU - Vanella, Marcos AU - Balaras, Elias AD - Lawrence Berkeley National Laboratory, Mail Stop 50A-1148, Berkeley, CA, 94720, USA, egoodfriend@lbl.gov Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 285 EP - 303 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 159 IS - 2 SN - 0006-8314, 0006-8314 KW - Pollution Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Flow KW - Contamination KW - Pollution dispersion KW - City planning KW - Wave damping KW - turbulence KW - Advection KW - Viscosity KW - Meteorology KW - Modelling KW - Marine KW - Simulation Analysis KW - Disasters KW - Brackish KW - Simulation KW - Oceanic eddies KW - Large eddy simulations KW - Numerical simulations KW - Energy KW - Eddy viscosity KW - Wave generation KW - Accumulation KW - P 9999:GENERAL POLLUTION KW - SW 0810:General KW - M2 551.511:Mechanics and Thermodynamics of the Atmosphere (551.511) KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1787976436?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Boundary-Layer+Meteorology&rft.atitle=Large-Eddy+Simulation+of+Flow+Through+an+Array+of+Cubes+with+Local+Grid+Refinement&rft.au=Goodfriend%2C+Elijah%3BKatopodes+Chow%2C+Fotini%3BVanella%2C+Marcos%3BBalaras%2C+Elias&rft.aulast=Goodfriend&rft.aufirst=Elijah&rft.date=2016-05-01&rft.volume=159&rft.issue=2&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=Boundary-Layer+Meteorology&rft.issn=00068314&rft_id=info:doi/10.1007%2Fs10546-016-0128-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 43 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Pollution dispersion; Disasters; Meteorology; Oceanic eddies; Wave damping; Wave generation; Eddy viscosity; Modelling; Numerical simulations; Large eddy simulations; Advection; Energy; Simulation; City planning; Flow; Viscosity; Contamination; Simulation Analysis; turbulence; Accumulation; Marine; Brackish DO - http://dx.doi.org/10.1007/s10546-016-0128-y ER - TY - JOUR T1 - A science data gateway for environmental management AN - 1785224643; PQ0002909324 AB - Science data gateways are effective in providing complex science data collections to the world-wide user communities. In this paper we describe a gateway for the Advanced Simulation Capability for Environmental Management (ASCEM) framework. Built on top of established web service technologies, the ASCEM data gateway is specifically designed for environmental modeling applications. Its key distinguishing features include (1) handling of complex spatiotemporal data, (2) offering a variety of selective data access mechanisms, (3) providing state-of-the-art plotting and visualization of spatiotemporal data records, and (4) integrating seamlessly with a distributed workflow system using a RESTful interface. ASCEM project scientists have been using this data gateway since 2011. JF - Concurrency and Computation: Practice & Experience AU - Agarwal, Deborah A AU - Faybishenko, Boris AU - Freedman, Vicky L AU - Krishnan, Harinarayan AU - Kushner, Gary AU - Lansing, Carina AU - Porter, Ellen AU - Romosan, Alexandru AU - Shoshani, Arie AU - Wainwright, Haruko AU - Weidmer, Arthur AU - Wu, Kesheng AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA. Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 1994 EP - 2004 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 28 IS - 7 SN - 1532-0626, 1532-0626 KW - Environment Abstracts KW - Data collection KW - Simulation KW - Environment management KW - Technology KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1785224643?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Concurrency+and+Computation%3A+Practice+%26+Experience&rft.atitle=A+science+data+gateway+for+environmental+management&rft.au=Agarwal%2C+Deborah+A%3BFaybishenko%2C+Boris%3BFreedman%2C+Vicky+L%3BKrishnan%2C+Harinarayan%3BKushner%2C+Gary%3BLansing%2C+Carina%3BPorter%2C+Ellen%3BRomosan%2C+Alexandru%3BShoshani%2C+Arie%3BWainwright%2C+Haruko%3BWeidmer%2C+Arthur%3BWu%2C+Kesheng&rft.aulast=Agarwal&rft.aufirst=Deborah&rft.date=2016-05-01&rft.volume=28&rft.issue=7&rft.spage=1994&rft.isbn=&rft.btitle=&rft.title=Concurrency+and+Computation%3A+Practice+%26+Experience&rft.issn=15320626&rft_id=info:doi/10.1002%2Fcpe.3697 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-04-01 N1 - Last updated - 2016-04-29 N1 - SubjectsTermNotLitGenreText - Data collection; Simulation; Environment management; Technology DO - http://dx.doi.org/10.1002/cpe.3697 ER - TY - JOUR T1 - Long-Range Interactions Restrict Water Transport in Pyrophyllite Interlayers. AN - 1785214048; 27118164 AB - Water diffusion within smectite clay interlayers is reduced by confinement and hence is highly determined by the interlayer spacings that are adopted during swelling. However, a molecular understanding of the short- and long-range forces governing interlayer water structure and dynamics is lacking. Using molecular dynamics simulations of water intercalated between pyrophyllite (smectite prototype) layers we provide a detailed picture of the variation of interlayered water mobility accompanying smectite expansion. Subtle changes in hydrogen bond network structure cause significant changes in water mobility that is greater for stable hydration states and reduced for intermediate separations. By studying pyrophyllite with and without external water we reveal that long-range electrostatic forces apply a restraining effect upon interlayer water mobility. Our findings are relevant for broad range of confining nanostructures with walls thin enough to permit long-range interactions that could affect the mobility of confined solvent molecules and solute species. JF - Scientific reports AU - Zarzycki, Piotr AU - Gilbert, Benjamin AD - Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland. ; Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States. Y1 - 2016/04/27/ PY - 2016 DA - 2016 Apr 27 SP - 25278 VL - 6 KW - Index Medicus UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1785214048?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Scientific+reports&rft.atitle=Long-Range+Interactions+Restrict+Water+Transport+in+Pyrophyllite+Interlayers.&rft.au=Zarzycki%2C+Piotr%3BGilbert%2C+Benjamin&rft.aulast=Zarzycki&rft.aufirst=Piotr&rft.date=2016-04-27&rft.volume=6&rft.issue=&rft.spage=25278&rft.isbn=&rft.btitle=&rft.title=Scientific+reports&rft.issn=2045-2322&rft_id=info:doi/10.1038%2Fsrep25278 LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-04-27 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Environ Sci Technol. 2010 Mar 15;44(6):2085-91 [20146523] J Chem Phys. 2007 May 28;126(20):204107 [17552754] N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1038/srep25278 ER - TY - JOUR T1 - Modern water-rock reactions in Oman hyperalkaline peridotite aquifers and implications for microbial habitability AN - 1797537735; 2016-051361 AB - The Samail ophiolite in Oman is undergoing modern hydration and carbonation of peridotite and may host a deep subsurface biosphere. Previous investigations of hyperalkaline fluids in Oman have focused on fluids released at surface seeps, which quickly lose their reducing character and precipitate carbonates upon contact with the O (sub 2) /CO (sub 2) -rich atmosphere. In this work, geochemical analysis of rocks and fluids from the subsurface provides new insights into the operative reactions in serpentinizing aquifers. Serpentinite rock and hyperalkaline fluids (pH > 10), which exhibit millimolar concentrations of Ca (super 2+) , H (sub 2) and CH (sub 4) , as well as variable sulfate and nitrate, were accessed from wells situated in mantle peridotite near Ibra and studied to investigate their aqueous geochemistry, gas concentrations, isotopic signatures, mineralogy, Fe speciation and microbial community composition. The bulk mineralogy of drill cuttings is dominated by olivine, pyroxene, brucite, serpentine and magnetite. At depth, Fe-bearing brucite is commonly intermixed with serpentine, whereas near the surface, olivine and brucite are lost and increased magnetite and serpentine is detected. Micro-Raman spectroscopy reveals at least two distinct generations of serpentine present in drill cuttings recovered from several depths from two wells. Fe K-edge X-ray absorption near-edge spectroscopy (XANES) analysis of the lizardite shows a strong tetrahedral Fe coordination, suggesting a mixture of both Fe(II) and Fe(III) in the serpentine. Magnetite veins are also closely associated with this second generation serpentine, and 2-10 mu m magnetite grains overprint all minerals in the drill cuttings. Thus we propose that the dissolved H (sub 2) that accumulates in the subsurface hyperalkaline fluids was evolved through low temperature oxidation and hydration of relict olivine, as well as destabilization of pre-existing brucite present in the partially serpentinized dunites and harzburgites. In particular, we hypothesize that Fe-bearing brucite is currently reacting with dissolved silica in the aquifer fluids to generate late-stage magnetite, additional serpentine and dissolved H (sub 2) . Dissolved CH (sub 4) in the fluids exhibits the most isotopically heavy carbon in CH (sub 4) reported in the literature thus far. The CH (sub 4) may have formed through abiotic reduction of dissolved CO (sub 2) or through biogenic pathways under extreme carbon limitation. The methane isotopic composition may have also been modified by significant methane oxidation. 16S rRNA sequencing of DNA recovered from filtered hyperalkaline well fluids reveals an abundance of Meiothermus, Thermodesulfovibrionaceae (sulfate-reducers) and Clostridia (fermenters). The fluids also contain candidate phyla OP1 and OD1, as well as Methanobacterium (methanogen) and Methylococcus sp. (methanotroph). The composition of these microbial communities suggests that low-temperature hydrogen and methane generation, coupled with the presence of electron acceptors such as nitrate and sulfate, sustains subsurface microbial life within the Oman ophiolite. Abstract Copyright (2016) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Miller, Hannah M AU - Matter, Juerg M AU - Kelemen, Peter AU - Ellison, Eric T AU - Conrad, Mark E AU - Fierer, Noah AU - Ruchala, Tyler AU - Tominaga, Masako AU - Templeton, Alexis S Y1 - 2016/04/15/ PY - 2016 DA - 2016 Apr 15 SP - 217 EP - 241 PB - Elsevier, New York, NY VL - 179 SN - 0016-7037, 0016-7037 KW - calcium KW - serpentinization KW - igneous rocks KW - aliphatic hydrocarbons KW - mass spectra KW - fluid phase KW - Semail Ophiolite KW - metasomatism KW - reservoir rocks KW - ground water KW - XANES spectra KW - plutonic rocks KW - mineral composition KW - water-rock interaction KW - micro-Raman spectra KW - spectra KW - chemical composition KW - Asia KW - hypersaline environment KW - pH KW - chemical weathering KW - alkaline earth metals KW - methane KW - biochemistry KW - Oman KW - carbonatization KW - hyperalkalic composition KW - ophiolite KW - alkanes KW - X-ray spectra KW - weathering KW - ultramafics KW - aquifers KW - ICP mass spectra KW - hydration KW - Arabian Peninsula KW - organic compounds KW - biogenic processes KW - Raman spectra KW - metals KW - bacteria KW - peridotites KW - hydrocarbons KW - reservoir properties KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797537735?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Modern+water-rock+reactions+in+Oman+hyperalkaline+peridotite+aquifers+and+implications+for+microbial+habitability&rft.au=Miller%2C+Hannah+M%3BMatter%2C+Juerg+M%3BKelemen%2C+Peter%3BEllison%2C+Eric+T%3BConrad%2C+Mark+E%3BFierer%2C+Noah%3BRuchala%2C+Tyler%3BTominaga%2C+Masako%3BTempleton%2C+Alexis+S&rft.aulast=Miller&rft.aufirst=Hannah&rft.date=2016-04-15&rft.volume=179&rft.issue=&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.01.033 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 143 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables, geol. sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-06-17 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkaline earth metals; alkanes; aquifers; Arabian Peninsula; Asia; bacteria; biochemistry; biogenic processes; calcium; carbonatization; chemical composition; chemical weathering; fluid phase; ground water; hydration; hydrocarbons; hyperalkalic composition; hypersaline environment; ICP mass spectra; igneous rocks; mass spectra; metals; metasomatism; methane; micro-Raman spectra; mineral composition; Oman; ophiolite; organic compounds; peridotites; pH; plutonic rocks; Raman spectra; reservoir properties; reservoir rocks; Semail Ophiolite; serpentinization; spectra; ultramafics; water-rock interaction; weathering; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/j.gca.2016.01.033 ER - TY - JOUR T1 - Simulating bioclogging effects on dynamic riverbed permeability and infiltration AN - 1828847029; 2016-086758 AB - Bioclogging in rivers can detrimentally impact aquifer recharge. This is particularly so in dry regions, where losing rivers are common, and where disconnection between surface water and groundwater (leading to the development of an unsaturated zone) can occur. Reduction in riverbed permeability due to biomass growth is a time-variable parameter that is often neglected, yet permeability reduction from bioclogging can introduce order of magnitude changes in seepage fluxes from rivers over short (i.e., monthly) timescales. To address the combined effects of bioclogging and disconnection on infiltration, we developed numerical representations of bioclogging processes within a one-dimensional, variably saturated flow model representing losing-connected and losing-disconnected rivers. We tested these formulations using a synthetic case study informed with biological data obtained from the Russian River, California, USA. Our findings show that modeled biomass growth reduced seepage for losing-connected and losing-disconnected rivers. However, for rivers undergoing disconnection, infiltration declines occurred only after the system was fully disconnected. Before full disconnection, biologically induced permeability declines were not significant enough to offset the infiltration gains introduced by disconnection. The two effects combine to lead to a characteristic infiltration curve where peak infiltration magnitude and timing is controlled by permeability declines relative to hydraulic gradient gains. Biomass growth was found to hasten the onset of full disconnection; a condition we term 'effective disconnection'. Our results show that river infiltration can respond dynamically to bioclogging and subsequent permeability declines that are highly dependent on river connection status. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Water Resources Research AU - Newcomer, Michelle E AU - Hubbard, Susan S AU - Fleckenstein, Jan H AU - Maier, Ulrich AU - Schmidt, Christian AU - Thullner, Martin AU - Ulrich, Craig AU - Flipo, Nicolas AU - Rubin, Yoram Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 2883 EP - 2900 PB - American Geophysical Union, Washington, DC VL - 52 IS - 4 SN - 0043-1397, 0043-1397 KW - United States KW - numerical models KW - biomass KW - Wohler Site KW - data processing KW - Russian River KW - channels KW - rivers KW - seepage KW - ground water KW - aquifers KW - California KW - recharge KW - bioclogging KW - dynamics KW - infiltration KW - digital simulation KW - fluvial features KW - Sonoma County California KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828847029?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Simulating+bioclogging+effects+on+dynamic+riverbed+permeability+and+infiltration&rft.au=Newcomer%2C+Michelle+E%3BHubbard%2C+Susan+S%3BFleckenstein%2C+Jan+H%3BMaier%2C+Ulrich%3BSchmidt%2C+Christian%3BThullner%2C+Martin%3BUlrich%2C+Craig%3BFlipo%2C+Nicolas%3BRubin%2C+Yoram&rft.aulast=Newcomer&rft.aufirst=Michelle&rft.date=2016-04-01&rft.volume=52&rft.issue=4&rft.spage=2883&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2015WR018351 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 65 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-10-25 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - aquifers; bioclogging; biomass; California; channels; data processing; digital simulation; dynamics; fluvial features; ground water; infiltration; numerical models; permeability; recharge; rivers; Russian River; seepage; Sonoma County California; United States; Wohler Site DO - http://dx.doi.org/10.1002/2015WR018351 ER - TY - JOUR T1 - P and S wave responses of bacterial biopolymer formation in unconsolidated porous media AN - 1803780478; 2016-060653 AB - This study investigated the P and S wave responses and permeability reduction during bacterial biopolymer formation in unconsolidated porous media. Column experiments with fine sands, where the model bacteria Leuconostoc mesenteroides were stimulated to produce insoluble biopolymer, were conducted while monitoring changes in permeability and P and S wave responses. The bacterial biopolymer reduced the permeability by more than 1 order of magnitude, occupying approximately 10% pore volume after 38 days of growth. This substantial reduction was attributed to the bacterial biopolymer with complex internal structures accumulated at pore throats. S wave velocity (V (sub S) ) increased by more than approximately 50% during biopolymer accumulation; this indicated that the bacterial biopolymer caused a certain level of stiffening effect on shear modulus of the unconsolidated sediment matrix at low confining stress conditions. Whereas replacing pore water by insoluble biopolymer was observed to cause minimal changes in P wave velocity (V (sub P) ) due to the low elastic moduli of insoluble biopolymer. The spectral ratio analyses revealed that the biopolymer formation caused a approximately 50-80% increase in P wave attenuation (1/Q (sub P) ) at the both ultrasonic and subultrasonic frequency ranges, at hundreds of kHz and tens of kHz, respectively, and a approximately 50-60% increase in S wave attenuation (1/Q (sub S) ) in the frequency band of several kHz. Our results reveal that in situ biopolymer formation and the resulting permeability reduction can be effectively monitored by using P and S wave attenuation in the ultrasonic and subultrasonic frequency ranges. This suggests that field monitoring using seismic logging techniques, including time-lapse dipole sonic logging, may be possible. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Biogeosciences AU - Noh, Dong-Hwa AU - Ajo-Franklin, Jonathan B AU - Kwon, Tae-Hyuk AU - Muhunthan, Balasingam Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 1158 EP - 1177 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 4 SN - 2169-8953, 2169-8953 KW - P-waves KW - dextran KW - polysaccharides KW - elastic waves KW - frequency KW - elastic constants KW - fluid dynamics KW - feasibility studies KW - attenuation KW - specific surface KW - sediments KW - velocity KW - carbohydrates KW - transducers KW - Leuconostoc mesenteroides KW - polymers KW - sand KW - body waves KW - experimental studies KW - monitoring KW - clastic sediments KW - geomicrobiology KW - geophysical methods KW - porous materials KW - equations KW - solubility KW - ultrasonic methods KW - porosity KW - signals KW - measurement KW - organic compounds KW - saturation KW - biofilms KW - bacteria KW - unconsolidated materials KW - seismic waves KW - shear modulus KW - S-waves KW - permeability KW - instruments KW - bender element tests KW - geophysics KW - amplitude KW - 06A:Sedimentary petrology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Biogeosciences&rft.atitle=P+and+S+wave+responses+of+bacterial+biopolymer+formation+in+unconsolidated+porous+media&rft.au=Noh%2C+Dong-Hwa%3BAjo-Franklin%2C+Jonathan+B%3BKwon%2C+Tae-Hyuk%3BMuhunthan%2C+Balasingam&rft.aulast=Cheng&rft.aufirst=Chun&rft.date=2014-06-26&rft.volume=4&rft.issue=&rft.spage=5456&rft.isbn=&rft.btitle=&rft.title=Scientific+reports&rft.issn=2045-2322&rft_id=info:doi/10.1038%2Fsrep05456 L2 - http://www.wiley.com/WileyCDA/WileyTitle/productCd-JGRG.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 54 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - amplitude; attenuation; bacteria; bender element tests; biofilms; body waves; carbohydrates; clastic sediments; dextran; elastic constants; elastic waves; equations; experimental studies; feasibility studies; fluid dynamics; frequency; geomicrobiology; geophysical methods; geophysics; instruments; Leuconostoc mesenteroides; measurement; monitoring; organic compounds; P-waves; permeability; polymers; polysaccharides; porosity; porous materials; S-waves; sand; saturation; sediments; seismic waves; shear modulus; signals; solubility; specific surface; transducers; ultrasonic methods; unconsolidated materials; velocity DO - http://dx.doi.org/10.1002/2015JG003118 ER - TY - JOUR T1 - Nanophase iron production through laser irradiation and magnetic detection of space weathering analogs AN - 1800396108; 2016-055907 JF - Icarus AU - Markley, Matthew AU - Kletetschka, Gunther Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 204 EP - 214 PB - Elsevier, New York, NY VL - 268 SN - 0019-1035, 0019-1035 KW - silicates KW - near-infrared spectra KW - irradiation KW - laser methods KW - asteroids KW - optical spectra KW - olivine group KW - simulation KW - iron KW - meteorites KW - olivine KW - Mercury Planet KW - orthosilicates KW - spectra KW - experimental studies KW - Moon KW - electron microscopy data KW - impacts KW - weathering KW - terrestrial planets KW - nesosilicates KW - planets KW - micrometeorites KW - space weathering KW - metals KW - natural analogs KW - magnetic susceptibility KW - S-type asteroids KW - nanophase iron KW - nanoparticles KW - SEM data KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396108?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Nanophase+iron+production+through+laser+irradiation+and+magnetic+detection+of+space+weathering+analogs&rft.au=Markley%2C+Matthew%3BKletetschka%2C+Gunther&rft.aulast=Markley&rft.aufirst=Matthew&rft.date=2016-04-01&rft.volume=268&rft.issue=&rft.spage=204&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.12.022 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 39 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-06-30 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - asteroids; electron microscopy data; experimental studies; impacts; iron; irradiation; laser methods; magnetic susceptibility; Mercury Planet; metals; meteorites; micrometeorites; Moon; nanoparticles; nanophase iron; natural analogs; near-infrared spectra; nesosilicates; olivine; olivine group; optical spectra; orthosilicates; planets; S-type asteroids; SEM data; silicates; simulation; space weathering; spectra; terrestrial planets; weathering DO - http://dx.doi.org/10.1016/j.icarus.2015.12.022 ER - TY - JOUR T1 - iMatTOUGH; an open source Matlab-based graphical user interface for pre- and post-processing of TOUGH2 and iTOUGH2 models AN - 1797537971; 2016-051087 AB - TOUGH2 and iTOUGH2 are powerful models that simulate the heat and fluid flows in porous and fracture media, and perform parameter estimation, sensitivity analysis and uncertainty propagation analysis. However, setting up the input files is not only tedious, but error prone, and processing output files is time consuming. In this study, we present an open source Matlab-based tool (iMatTOUGH) that supports the generation of all necessary inputs for both TOUGH2 and iTOUGH2 and visualize their outputs. The tool links the inputs of TOUGH2 and iTOUGH2, making sure the two input files are consistent. It supports the generation of rectangular computational mesh, i.e., it automatically generates the elements and connections as well as their properties as required by TOUGH2. The tool also allows the specification of initial and time-dependent boundary conditions for better subsurface heat and water flow simulations. The effectiveness of the tool is illustrated by an example that uses TOUGH2 and iTOUGH2 to estimate soil hydrological and thermal properties from soil temperature data and simulate the heat and water flows at the Rifle site in Colorado. Abstract Copyright (2016) Elsevier, B.V. JF - Computers & Geosciences AU - Tran (Anh Phuong), Anh Phuong (Tran) AU - Dafflon, Baptiste AU - Hubbard, Susan Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 132 EP - 143 PB - Elsevier, Amsterdam VL - 89 SN - 0098-3004, 0098-3004 KW - United States KW - TOUGH2 KW - fractured materials KW - Garfield County Colorado KW - iTOUGH2 KW - data processing KW - petroleum KW - fluid phase KW - simulation KW - reservoir rocks KW - visualization KW - Rifle Colorado KW - movement KW - propagation KW - uncertainty KW - MATLAB KW - heat flux KW - porous materials KW - boundary conditions KW - models KW - geothermal energy KW - computer programs KW - mathematical methods KW - reservoir properties KW - Colorado KW - water resources KW - 29A:Economic geology, geology of energy sources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797537971?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Geosciences&rft.atitle=iMatTOUGH%3B+an+open+source+Matlab-based+graphical+user+interface+for+pre-+and+post-processing+of+TOUGH2+and+iTOUGH2+models&rft.au=Tran+%28Anh+Phuong%29%2C+Anh+Phuong+%28Tran%29%3BDafflon%2C+Baptiste%3BHubbard%2C+Susan&rft.aulast=Tran+%28Anh+Phuong%29&rft.aufirst=Anh+Phuong&rft.date=2016-04-01&rft.volume=89&rft.issue=&rft.spage=132&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/10.1016%2Fj.cageo.2016.02.006 L2 - http://www.sciencedirect.com/science?_ob=JournalURL&_cdi=5840&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e5198452fad934c6346f38b57511c8e0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 10 N1 - Document feature - illus. N1 - Last updated - 2016-08-18 N1 - CODEN - GGEOD5 N1 - SubjectsTermNotLitGenreText - boundary conditions; Colorado; computer programs; data processing; fluid phase; fractured materials; Garfield County Colorado; geothermal energy; heat flux; iTOUGH2; mathematical methods; MATLAB; models; movement; petroleum; porous materials; propagation; reservoir properties; reservoir rocks; Rifle Colorado; simulation; TOUGH2; uncertainty; United States; visualization; water resources DO - http://dx.doi.org/10.1016/j.cageo.2016.02.006 ER - TY - JOUR T1 - Trajectory-based modeling of fluid transport in a medium with smoothly varying heterogeneity AN - 1794501325; PQ0003150481 AB - Using an asymptotic methodology, valid in the presence of smoothly varying heterogeneity and prescribed boundaries, we derive a trajectory-based solution for tracer transport. The analysis produces a Hamilton-Jacobi partial differential equation for the phase of the propagating tracer front. The trajectories follow from the characteristic equations that are equivalent to the Hamilton-Jacobi equation. The paths are determined by the fluid velocity field, the total porosity, and the dispersion tensor. Due to their dependence upon the local hydrodynamic dispersion, they differ from conventional streamlines. This difference is borne out in numerical calculations for both uniform and dipole flow fields. In an application to the computational X-ray imaging of a saline tracer test, we illustrate that the trajectories may serve as the basis for a form of tracer tomography. In particular, we use the onset time of a change in attenuation for each volume element of the X-ray image as a measure of the arrival time of the saline tracer. The arrival times are used to image the spatial variation of the effective hydraulic conductivity within the laboratory sample. Key Points: * A semianalytic solution for tracer transport is introduced * A fully general dispersion tensor and smoothly varying heterogeneity are included in the model * The approach forms the basis for an efficient imaging or inversion algorithm JF - Water Resources Research AU - Vasco, D W AU - Pride, Steven R AU - Commer, Michael AD - Energy Geosciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California, USA. Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 2618 EP - 2646 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 52 IS - 4 SN - 0043-1397, 0043-1397 KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts KW - Flow KW - Hydraulic conductivity KW - Hydrodynamics KW - Algorithms KW - Water resources KW - Differential Equations KW - Tracers KW - X-rays KW - Heterogeneity KW - Modelling KW - Mathematical models KW - Streamlines KW - Laboratories KW - Porosity KW - Velocity KW - Inversions KW - Imaging techniques KW - Model Studies KW - Differential equations KW - Tracer transport KW - Fronts KW - Boundaries KW - Water resources research KW - Dispersion models KW - Dispersion KW - AQ 00001:Water Resources and Supplies KW - Q2 09102:Institutes and organizations KW - SW 0810:General KW - M2 556.18:Water Management (556.18) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1794501325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Trajectory-based+modeling+of+fluid+transport+in+a+medium+with+smoothly+varying+heterogeneity&rft.au=Vasco%2C+D+W%3BPride%2C+Steven+R%3BCommer%2C+Michael&rft.aulast=Vasco&rft.aufirst=D&rft.date=2016-04-01&rft.volume=50&rft.issue=6&rft.spage=4564&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2013WR013842 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-06-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Tracers; Streamlines; Mathematical models; Porosity; Water resources; Imaging techniques; Differential equations; Modelling; Dispersion; Hydraulic conductivity; Tracer transport; Fronts; Hydrodynamics; Algorithms; Dispersion models; Water resources research; Inversions; Flow; X-rays; Laboratories; Boundaries; Velocity; Differential Equations; Heterogeneity; Model Studies DO - http://dx.doi.org/10.1002/2015WR017646 ER - TY - JOUR T1 - On the sizes and lifetimes of cold pools AN - 1790938935; PQ0003064372 AB - Cold pools of air, which are formed by evaporating precipitation, play a critical role in the triggering of new precipitation. Despite their recognized importance, little effort has been devoted to building simple models of their dynamics. Here, analytical equations are derived for the radius, height, and buoyancy of a cylindrical cold pool as a function of time, and a scale analysis reveals that entrainment is a dominant influence. These governing equations yield simple expressions for the maximum sizes and lifetimes of cold pools. The terminal radius of a cold pool is relatively insensitive to its initial conditions, with a typical maximum radius of about 14 times the initial radius, give or take a factor of 2. The terminal time of a cold pool, on the other hand, can vary over orders of magnitude depending on its initial potential and kinetic energies. These predictions are validated against large-eddy simulations. JF - Quarterly Journal of the Royal Meteorological Society AU - Romps, David M AU - Jeevanjee, Nadir AD - Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, CA, USA. Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 1517 EP - 1527 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 142 IS - 696 SN - 0035-9009, 0035-9009 KW - Oceanic Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Atmospheric precipitations KW - Marine KW - Entrainment KW - Mathematical models KW - Simulation Analysis KW - Brackish KW - Pools KW - Simulation KW - Oceanic eddies KW - Precipitation KW - Large eddy simulations KW - Buildings KW - Cold pools KW - Kinetic Energy KW - Yield KW - Initial conditions KW - Buoyancy KW - Modelling KW - O 5080:Legal/Governmental KW - SW 0810:General KW - Q2 09244:Air-sea coupling KW - M2 551.577:General Precipitation (551.577) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790938935?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quarterly+Journal+of+the+Royal+Meteorological+Society&rft.atitle=On+the+sizes+and+lifetimes+of+cold+pools&rft.au=Romps%2C+David+M%3BJeevanjee%2C+Nadir&rft.aulast=Romps&rft.aufirst=David&rft.date=2016-04-01&rft.volume=142&rft.issue=696&rft.spage=1517&rft.isbn=&rft.btitle=&rft.title=Quarterly+Journal+of+the+Royal+Meteorological+Society&rft.issn=00359009&rft_id=info:doi/10.1002%2Fqj.2754 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Mathematical models; Simulation; Oceanic eddies; Modelling; Buoyancy; Entrainment; Precipitation; Initial conditions; Large eddy simulations; Cold pools; Yield; Simulation Analysis; Pools; Buildings; Kinetic Energy; Marine; Brackish DO - http://dx.doi.org/10.1002/qj.2754 ER - TY - JOUR T1 - Estimated effect of ventilation and filtration on chronic health risks in U.S. offices, schools, and retail stores AN - 1780504977; PQ0002833089 AB - We assessed the chronic health risks from inhalation exposure to volatile organic compounds (VOCs) and particulate matter (PM2.5) in U.S. offices, schools, grocery, and other retail stores and evaluated how chronic health risks were affected by changes in ventilation rates and air filtration efficiency. Representative concentrations of VOCs and PM2.5 were obtained from available data. Using a mass balance model, changes in exposure to VOCs and PM2.5 were predicted if ventilation rate were to increase or decrease by a factor of two, and if higher efficiency air filters were used. Indoor concentrations were compared to health guidelines to estimate percentage exceedances. The estimated chronic health risks associated with VOC and PM2.5 exposures in these buildings were low relative to the risks from exposures in homes. Chronic health risks were driven primarily by exposures to PM2.5 that were evaluated using disease incidence of mortality, chronic bronchitis, and non-fatal stroke. The leading cancer risk factor was exposure to formaldehyde. Using disability-adjusted life years (DALYs) to account for both cancer and non-cancer effects, results suggest that increasing ventilation alone is ineffective at reducing chronic health burdens. Other strategies, such as pollutant source control and the use of particle filtration, should also be considered. JF - Indoor Air AU - Chan, W R AU - Parthasarathy, S AU - Fisk, W J AU - McKone, TE AD - Energy Analysis and Environmental Impacts Department, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 331 EP - 343 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 26 IS - 2 SN - 0905-6947, 0905-6947 KW - Pollution Abstracts; Toxicology Abstracts; Environment Abstracts KW - Inhalation KW - Ventilation KW - Particulate matter KW - Formaldehyde KW - Particulates KW - Models KW - Pollutants KW - Risk factors KW - Bronchitis KW - Particle size KW - Pollutant removal KW - Mortality KW - Data processing KW - Guidelines KW - Stroke KW - Buildings KW - Cancer KW - Filters KW - Health risks KW - Filtration KW - Schools KW - Air purification KW - volatile organic compounds KW - Volatile organic compounds KW - P 0000:AIR POLLUTION KW - X 24350:Industrial Chemicals KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780504977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Indoor+Air&rft.atitle=Estimated+effect+of+ventilation+and+filtration+on+chronic+health+risks+in+U.S.+offices%2C+schools%2C+and+retail+stores&rft.au=Chan%2C+W+R%3BParthasarathy%2C+S%3BFisk%2C+W+J%3BMcKone%2C+TE&rft.aulast=Chan&rft.aufirst=W&rft.date=2016-04-01&rft.volume=26&rft.issue=2&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Indoor+Air&rft.issn=09056947&rft_id=info:doi/10.1111%2Fina.12189 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-04-01 N1 - Last updated - 2016-05-13 N1 - SubjectsTermNotLitGenreText - Inhalation; Mortality; Data processing; Ventilation; Stroke; Particulate matter; Formaldehyde; Cancer; Models; Filters; Filtration; Pollutants; Risk factors; volatile organic compounds; Bronchitis; Particle size; Pollutant removal; Guidelines; Particulates; Buildings; Health risks; Schools; Air purification; Volatile organic compounds DO - http://dx.doi.org/10.1111/ina.12189 ER - TY - JOUR T1 - Identification of pH-sensing Sites in the Light Harvesting Complex Stress-related 3 Protein Essential for Triggering Non-photochemical Quenching in Chlamydomonas reinhardtii. AN - 1777983399; 26817847 AB - Light harvesting complex stress-related 3 (LHCSR3) is the protein essential for photoprotective excess energy dissipation (non-photochemical quenching, NPQ) in the model green algaChlamydomonas reinhardtii Activation of NPQ requires low pH in the thylakoid lumen, which is induced in excess light conditions and sensed by lumen-exposed acidic residues. In this work we have used site-specific mutagenesisin vivoandin vitrofor identification of the residues in LHCSR3 that are responsible for sensing lumen pH. Lumen-exposed protonatable residues, aspartate and glutamate, were mutated to asparagine and glutamine, respectively. By expression in a mutant lacking all LHCSR isoforms, residues Asp(117), Glu(221), and Glu(224)were shown to be essential for LHCSR3-dependent NPQ induction inC. reinhardtii Analysis of recombinant proteins carrying the same mutations refoldedin vitrowith pigments showed that the capacity of responding to low pH by decreasing the fluorescence lifetime, present in the wild-type protein, was lost. Consistent with a role in pH sensing, the mutations led to a substantial reduction in binding the NPQ inhibitor dicyclohexylcarbodiimide. JF - The Journal of biological chemistry AU - Ballottari, Matteo AU - Truong, Thuy B AU - De Re, Eleonora AU - Erickson, Erika AU - Stella, Giulio R AU - Fleming, Graham R AU - Bassi, Roberto AU - Niyogi, Krishna K AD - From the Department of Biotechnology, University of Verona, Strada Le Grazie, I-37134 Verona, Italy. ; the Howard Hughes Medical Institute, Department of Plant and Microbial Biology, University of California, Berkeley, California 94720-3102. ; the Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, and the Graduate Group in Applied Science and Technology, University of California, Berkeley, California 94720. ; the Howard Hughes Medical Institute, Department of Plant and Microbial Biology, University of California, Berkeley, California 94720-3102, the Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, and. ; From the Department of Biotechnology, University of Verona, Strada Le Grazie, I-37134 Verona, Italy, the Sorbonne Universités, UPMC Univ-Paris 6, CNRS, UMR 7238, Laboratoire de Biologie Computationnelle et Quantitative, 15 rue de l'Ecole de Médecine, 75006 Paris, France. ; the Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, and the Graduate Group in Applied Science and Technology, University of California, Berkeley, California 94720 the Department of Chemistry, Hildebrand B77, University of California, Berkeley, California 94720-1460. ; From the Department of Biotechnology, University of Verona, Strada Le Grazie, I-37134 Verona, Italy, roberto.bassi@univr.it. ; the Howard Hughes Medical Institute, Department of Plant and Microbial Biology, University of California, Berkeley, California 94720-3102, the Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, and niyogi@berkeley.edu. Y1 - 2016/04/01/ PY - 2016 DA - 2016 Apr 01 SP - 7334 EP - 7346 VL - 291 IS - 14 KW - Light-Harvesting Protein Complexes KW - 0 KW - Index Medicus KW - photosynthesis KW - fluorescence KW - plant biochemistry KW - non-photochemical quenching KW - photosystem II KW - photosynthetic pigment KW - photoprotection KW - Mutagenesis, Site-Directed KW - Hydrogen-Ion Concentration KW - Mutation, Missense KW - Light-Harvesting Protein Complexes -- genetics KW - Chlamydomonas reinhardtii -- metabolism KW - Chlamydomonas reinhardtii -- genetics KW - Thylakoids -- metabolism KW - Light-Harvesting Protein Complexes -- metabolism KW - Thylakoids -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777983399?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+biological+chemistry&rft.atitle=Identification+of+pH-sensing+Sites+in+the+Light+Harvesting+Complex+Stress-related+3+Protein+Essential+for+Triggering+Non-photochemical+Quenching+in+Chlamydomonas+reinhardtii.&rft.au=Ballottari%2C+Matteo%3BTruong%2C+Thuy+B%3BDe+Re%2C+Eleonora%3BErickson%2C+Erika%3BStella%2C+Giulio+R%3BFleming%2C+Graham+R%3BBassi%2C+Roberto%3BNiyogi%2C+Krishna+K&rft.aulast=Ballottari&rft.aufirst=Matteo&rft.date=2016-04-01&rft.volume=291&rft.issue=14&rft.spage=7334&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+biological+chemistry&rft.issn=1083-351X&rft_id=info:doi/10.1074%2Fjbc.M115.704601 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-08-15 N1 - Date created - 2016-04-02 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Nature. 2000 Jan 27;403(6768):391-5 [10667783] Biochim Biophys Acta. 2012 Jan;1817(1):143-57 [21704018] Plant Cell. 2002 Aug;14(8):1801-16 [12172023] Proc Natl Acad Sci U S A. 2002 Nov 12;99(23):15222-7 [12417767] Plant Cell Physiol. 2004 Feb;45(2):138-45 [14988484] Nature. 2004 Mar 18;428(6980):287-92 [15029188] J Biol Chem. 2004 May 28;279(22):22866-74 [15033974] FEBS Lett. 1991 Nov 4;292(1-2):1-4 [1959588] FEBS Lett. 1992 Sep 7;309(2):175-9 [1380472] Nature. 1994 Feb 17;367(6464):614-21 [8107845] Biochemistry. 1996 Jan 23;35(3):674-8 [8547246] Eur J Biochem. 1996 May 15;238(1):112-20 [8665927] Proc Natl Acad Sci U S A. 1996 Nov 26;93(24):14204-9 [8943085] FEBS Lett. 1997 Feb 3;402(2-3):151-6 [9037185] Biochemistry. 1998 Jul 14;37(28):9999-10005 [9665705] Proc Natl Acad Sci U S A. 1999 Aug 31;96(18):10056-61 [10468561] Eur J Biochem. 2004 Dec;271(23-24):4659-65 [15606753] Science. 2005 Jan 21;307(5708):433-6 [15662017] Photosynth Res. 2005 Aug;85(2):221-33 [16075322] Biochemistry. 2006 Nov 28;45(47):14140-54 [17115709] FEBS Lett. 2007 Jul 24;581(18):3528-32 [17624333] Nature. 2007 Nov 22;450(7169):575-8 [18033302] J Biol Chem. 2008 Feb 8;283(6):3550-8 [17991753] BMC Bioinformatics. 2008;9:40 [18215316] J Biol Chem. 2008 Mar 28;283(13):8434-45 [18070876] Science. 2008 May 9;320(5877):794-7 [18467588] FEBS Lett. 2008 Oct 29;582(25-26):3625-31 [18834884] Curr Opin Plant Biol. 2013 Jun;16(3):307-14 [23583332] Proc Natl Acad Sci U S A. 2013 Jun 11;110(24):10016-21 [23716695] Planta. 2012 Jan;235(1):193-204 [21866345] J Biol Chem. 2012 Feb 17;287(8):5833-47 [22205699] Extremophiles. 2012 Mar;16(2):193-203 [22212653] J Biol Chem. 2012 May 11;287(20):16276-88 [22431727] Proc Natl Acad Sci U S A. 2012 May 29;109(22):8405-10 [22586081] Plant Physiol. 2013 Feb;161(2):853-65 [23209128] Biochim Biophys Acta. 2013 Mar;1827(3):348-54 [23159727] Biochim Biophys Acta. 2013 Jun;1827(6):738-44 [23466337] Photochem Photobiol Sci. 2013 Jul;12(7):1135-43 [23396391] Phys Chem Chem Phys. 2013 Aug 7;15(29):12253-61 [23771239] J Phys Chem B. 2013 Sep 26;117(38):11337-48 [23786371] Plant Cell. 2013 Sep;25(9):3519-34 [24014548] J Am Chem Soc. 2013 Dec 11;135(49):18339-42 [24261574] Philos Trans R Soc Lond B Biol Sci. 2014 Apr 19;369(1640):20130221 [24591708] Biochim Biophys Acta. 2014 Sep;1837(9):1533-9 [24321504] Photosynth Res. 2015 May;124(2):171-80 [25744389] Nat Struct Mol Biol. 2015 Sep;22(9):729-35 [26258636] J Biol Chem. 2015 Oct 2;290(40):24340-54 [26260788] Photochem Photobiol. 2008 Nov-Dec;84(6):1359-70 [19067957] J Biol Chem. 2009 Mar 20;284(12):8103-13 [19129188] Nature. 2009 Nov 26;462(7272):518-21 [19940928] J Biol Chem. 2010 Jan 29;285(5):3478-86 [19923216] Biochem Soc Trans. 2010 Apr;38(2):651-60 [20298238] Nat Protoc. 2010 Apr;5(4):725-38 [20360767] Chemphyschem. 2010 Apr 26;11(6):1289-96 [20127930] Proc Natl Acad Sci U S A. 2010 Jun 15;107(24):11128-33 [20505121] Biochim Biophys Acta. 2010 Aug;1797(8):1449-57 [20388491] J Biol Chem. 2010 Sep 3;285(36):28309-21 [20584907] Proc Natl Acad Sci U S A. 2010 Oct 19;107(42):18214-9 [20921421] PLoS Biol. 2011;9(1):e1000577 [21267060] Nat Struct Mol Biol. 2011 Mar;18(3):309-15 [21297637] Proc Natl Acad Sci U S A. 2011 Mar 8;108(10):3848-53 [21321222] Plant Cell Environ. 2011 Jun;34(6):922-32 [21332514] Biochim Biophys Acta. 2012 Jan;1817(1):167-81 [21569757] Biochemistry. 2001 Oct 23;40(42):12552-61 [11601979] N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1074/jbc.M115.704601 ER - TY - JOUR T1 - Biomimetic Hierarchical Assembly of Helical Supraparticles from Chiral Nanoparticles. AN - 1775382255; 26900920 AB - Chiroptical materials found in butterflies, beetles, stomatopod crustaceans, and other creatures are attributed to biocomposites with helical motifs and multiscale hierarchical organization. These structurally sophisticated materials self-assemble from primitive nanoscale building blocks, a process that is simpler and more energy efficient than many top-down methods currently used to produce similarly sized three-dimensional materials. Here, we report that molecular-scale chirality of a CdTe nanoparticle surface can be translated to nanoscale helical assemblies, leading to chiroptical activity in the visible electromagnetic range. Chiral CdTe nanoparticles coated with cysteine self-organize around Te cores to produce helical supraparticles. D-/L-Form of the amino acid determines the dominant left/right helicity of the supraparticles. Coarse-grained molecular dynamics simulations with a helical pair-potential confirm the assembly mechanism and the origin of its enantioselectivity, providing a framework for engineering three-dimensional chiral materials by self-assembly. The helical supraparticles further self-organize into lamellar crystals with liquid crystalline order, demonstrating the possibility of hierarchical organization and with multiple structural motifs and length scales determined by molecular-scale asymmetry of nanoparticle interactions. JF - ACS nano AU - Zhou, Yunlong AU - Marson, Ryan L AU - van Anders, Greg AU - Zhu, Jian AU - Ma, Guanxiang AU - Ercius, Peter AU - Sun, Kai AU - Yeom, Bongjun AU - Glotzer, Sharon C AU - Kotov, Nicholas A AD - Wenzhou Institute of Biomaterials and Engineering, CNITECH.CAS-Wenzhou Medical University , Wenzhou, Zhejiang 325011, People's Republic of China. ; National Center for Electron Microscopy, the Molecular Foundry, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States. ; Department of Chemical Engineering, Myongji University , Yongin, Gyeonggido 17058, South Korea. Y1 - 2016/03/22/ PY - 2016 DA - 2016 Mar 22 SP - 3248 EP - 3256 VL - 10 IS - 3 KW - Cadmium Compounds KW - 0 KW - Cysteine KW - K848JZ4886 KW - Tellurium KW - NQA0O090ZJ KW - cadmium telluride KW - STG188WO13 KW - Index Medicus KW - self-assembly KW - supraparticles KW - virus-like nanostructures KW - chirality KW - biomimetic nanoparticles KW - helices KW - Stereoisomerism KW - Models, Molecular KW - Nanotechnology -- methods KW - Biomimetics -- methods KW - Viruses -- chemistry KW - Cysteine -- chemistry KW - Tellurium -- chemistry KW - Biomimetic Materials -- chemistry KW - Nanoparticles -- ultrastructure KW - Cadmium Compounds -- chemistry KW - Nanoparticles -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1775382255?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+nano&rft.atitle=Biomimetic+Hierarchical+Assembly+of+Helical+Supraparticles+from+Chiral+Nanoparticles.&rft.au=Zhou%2C+Yunlong%3BMarson%2C+Ryan+L%3Bvan+Anders%2C+Greg%3BZhu%2C+Jian%3BMa%2C+Guanxiang%3BErcius%2C+Peter%3BSun%2C+Kai%3BYeom%2C+Bongjun%3BGlotzer%2C+Sharon+C%3BKotov%2C+Nicholas+A&rft.aulast=Zhou&rft.aufirst=Yunlong&rft.date=2016-03-22&rft.volume=10&rft.issue=3&rft.spage=3248&rft.isbn=&rft.btitle=&rft.title=ACS+nano&rft.issn=1936-086X&rft_id=info:doi/10.1021%2Facsnano.5b05983 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-12-16 N1 - Date created - 2016-03-22 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1021/acsnano.5b05983 ER - TY - JOUR T1 - Ion adsorption and diffusion in smectite; molecular, pore, and continuum scale views AN - 1789748809; 2016-045225 AB - Clay-rich media have been proposed as engineered barrier materials or host rocks for high level radioactive waste repositories in several countries. Hence, a detailed understanding of adsorption and diffusion in these materials is needed, not only for radioactive contaminants, but also for predominant earth metals, which can affect radionuclide speciation and diffusion. The prediction of adsorption and diffusion in clay-rich media, however, is complicated by the similarity between the width of clay nanopores and the thickness of the electrical double layer (EDL) at charged clay mineral-water interfaces. Because of this similarity, the distinction between 'bulk liquid' water and 'surface' water (i.e., EDL water) in clayey media can be ambiguous. Hence, the goal of this study was to examine the ability of existing pore scale conceptual models (single porosity models) to link molecular and macroscopic scale data on adsorption and diffusion in compacted smectite. Macroscopic scale measurements of the adsorption and diffusion of calcium, bromide, and tritiated water in Na-montmorillonite were modeled using a multi-component reactive transport approach while testing a variety of conceptual models of pore scale properties (adsorption and diffusion in individual pores). Molecular dynamics (MD) simulations were carried out under conditions similar to those of our macroscopic scale diffusion experiments to help constrain the pore scale models. Our results indicate that single porosity models cannot be simultaneously consistent with our MD simulation results and our macroscopic scale diffusion data. A dual porosity model, which allows for the existence of a significant fraction of bulk liquid water-even at conditions where the average pore width is only a few nanometers-may be required to describe both pore scale and macroscopic scale data. Abstract Copyright (2016) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Tinnacher, Ruth M AU - Holmboe, Michael AU - Tournassat, Christophe AU - Bourg, Ian C AU - Davis, James A Y1 - 2016/03/15/ PY - 2016 DA - 2016 Mar 15 SP - 130 EP - 149 PB - Elsevier, New York, NY VL - 177 SN - 0016-7037, 0016-7037 KW - solute transport KW - silicates KW - geologic hazards KW - X-ray diffraction data KW - isotopes KW - radioactivity KW - simulation KW - ions KW - reservoir rocks KW - radioactive waste KW - environmental management KW - radioactive isotopes KW - water-rock interaction KW - transport KW - phase equilibria KW - molecular dynamics KW - pH KW - liquid phase KW - PHREEQC KW - experimental studies KW - diffusion KW - pollutants KW - statistical analysis KW - smectite KW - pollution KW - properties KW - equations KW - adsorption KW - porosity KW - clay minerals KW - molecular structure KW - models KW - mathematical methods KW - natural hazards KW - theoretical models KW - sheet silicates KW - reservoir properties KW - waste disposal KW - reactive barriers KW - crystal chemistry KW - nanoparticles KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789748809?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Ion+adsorption+and+diffusion+in+smectite%3B+molecular%2C+pore%2C+and+continuum+scale+views&rft.au=Tinnacher%2C+Ruth+M%3BHolmboe%2C+Michael%3BTournassat%2C+Christophe%3BBourg%2C+Ian+C%3BDavis%2C+James+A&rft.aulast=Tinnacher&rft.aufirst=Ruth&rft.date=2016-03-15&rft.volume=177&rft.issue=&rft.spage=130&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2015.12.010 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 132 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-05-19 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - adsorption; clay minerals; crystal chemistry; diffusion; environmental management; equations; experimental studies; geologic hazards; ions; isotopes; liquid phase; mathematical methods; models; molecular dynamics; molecular structure; nanoparticles; natural hazards; pH; phase equilibria; PHREEQC; pollutants; pollution; porosity; properties; radioactive isotopes; radioactive waste; radioactivity; reactive barriers; reservoir properties; reservoir rocks; sheet silicates; silicates; simulation; smectite; solute transport; statistical analysis; theoretical models; transport; waste disposal; water-rock interaction; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.gca.2015.12.010 ER - TY - JOUR T1 - Structural Basis of Cyclic Nucleotide Selectivity in cGMP-dependent Protein Kinase II. AN - 1772837854; 26769964 AB - Membrane-bound cGMP-dependent protein kinase (PKG) II is a key regulator of bone growth, renin secretion, and memory formation. Despite its crucial physiological roles, little is known about its cyclic nucleotide selectivity mechanism due to a lack of structural information. Here, we find that the C-terminal cyclic nucleotide binding (CNB-B) domain of PKG II binds cGMP with higher affinity and selectivity when compared with its N-terminal CNB (CNB-A) domain. To understand the structural basis of cGMP selectivity, we solved co-crystal structures of the CNB domains with cyclic nucleotides. Our structures combined with mutagenesis demonstrate that the guanine-specific contacts at Asp-412 and Arg-415 of the αC-helix of CNB-B are crucial for cGMP selectivity and activation of PKG II. Structural comparison with the cGMP selective CNB domains of human PKG I and Plasmodium falciparum PKG (PfPKG) shows different contacts with the guanine moiety, revealing a unique cGMP selectivity mechanism for PKG II. JF - The Journal of biological chemistry AU - Campbell, James C AU - Kim, Jeong Joo AU - Li, Kevin Y AU - Huang, Gilbert Y AU - Reger, Albert S AU - Matsuda, Shinya AU - Sankaran, Banumathi AU - Link, Todd M AU - Yuasa, Keizo AU - Ladbury, John E AU - Casteel, Darren E AU - Kim, Choel AD - From the Structural and Computational Biology and Molecular Biophysics Program. ; Department of Pharmacology, and the Department of Biochemistry, University of Kassel, Kassel, Hesse 34132, Germany. ; the Department of Biochemistry & Cell Biology, Rice University, Houston, Texas 77005. ; Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, Texas 77030. ; Department of Pharmacology, and. ; the Department of Biological Science and Technology, the University of Tokushima Graduate School, Tokushima 770-8506, Japan. ; the Berkeley Center for Structural Biology, Lawrence Berkeley National Laboratory, Berkeley, California 94720. ; the Department of Biochemistry and Molecular Biology, The University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030, and. ; From the Structural and Computational Biology and Molecular Biophysics Program, the Department of Biochemistry and Molecular Biology, The University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030, and. ; the Department of Medicine, University of California, San Diego, La Jolla, California 92093. ; From the Structural and Computational Biology and Molecular Biophysics Program, Department of Pharmacology, and Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, Texas 77030, ckim@bcm.edu. Y1 - 2016/03/11/ PY - 2016 DA - 2016 Mar 11 SP - 5623 EP - 5633 VL - 291 IS - 11 KW - Cyclic AMP KW - E0399OZS9N KW - Cyclic GMP-Dependent Protein Kinase Type II KW - EC 2.7.11.12 KW - Cyclic GMP KW - H2D2X058MU KW - Index Medicus KW - cyclic nucleotide KW - X-ray crystallography KW - serine/threonine protein kinase KW - allosteric regulation KW - second messenger KW - ligand-binding protein KW - NO-cGMP signaling KW - receptor structure-function KW - cGMP-dependent protein kinase KW - cyclic nucleotide-binding domain (CNB) KW - protein kinase G (PKG) KW - Animals KW - COS Cells KW - Models, Molecular KW - Humans KW - HEK293 Cells KW - Cercopithecus aethiops KW - Cyclic AMP -- metabolism KW - Crystallography, X-Ray KW - Allosteric Regulation KW - Substrate Specificity KW - Protein Structure, Tertiary KW - Cyclic GMP -- metabolism KW - Cyclic GMP-Dependent Protein Kinase Type II -- metabolism KW - Cyclic GMP-Dependent Protein Kinase Type II -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1772837854?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+biological+chemistry&rft.atitle=Structural+Basis+of+Cyclic+Nucleotide+Selectivity+in+cGMP-dependent+Protein+Kinase+II.&rft.au=Campbell%2C+James+C%3BKim%2C+Jeong+Joo%3BLi%2C+Kevin+Y%3BHuang%2C+Gilbert+Y%3BReger%2C+Albert+S%3BMatsuda%2C+Shinya%3BSankaran%2C+Banumathi%3BLink%2C+Todd+M%3BYuasa%2C+Keizo%3BLadbury%2C+John+E%3BCasteel%2C+Darren+E%3BKim%2C+Choel&rft.aulast=Campbell&rft.aufirst=James&rft.date=2016-03-11&rft.volume=291&rft.issue=11&rft.spage=5623&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+biological+chemistry&rft.issn=1083-351X&rft_id=info:doi/10.1074%2Fjbc.M115.691303 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-08-03 N1 - Date created - 2016-03-12 N1 - Date revised - 2017-02-17 N1 - Genetic sequence - 4KU7; PDB; 3OCP; 5C6C N1 - SuppNotes - Cited By: J Biol Chem. 2000 Sep 8;275(36):28053-62 [10864932] Science. 1996 Dec 20;274(5295):2082-6 [8953039] Protein Sci. 2004 Feb;13(2):370-80 [14739323] J Biol Chem. 1986 Jan 25;261(3):1208-14 [3003061] J Biol Chem. 1989 May 5;264(13):7734-41 [2540204] J Biol Chem. 1997 May 2;272(18):11816-23 [9115239] Proc Natl Acad Sci U S A. 1998 Feb 17;95(4):1466-71 [9465038] Crit Rev Clin Lab Sci. 1999 Aug;36(4):275-328 [10486703] Acta Crystallogr D Biol Crystallogr. 2004 Dec;60(Pt 12 Pt 1):2126-32 [15572765] Drug Discov Today. 2005 May 1;10(9):627-34 [15894227] Front Biosci. 2005;10:2150-64 [15970484] Am J Physiol Cell Physiol. 2005 Sep;289(3):C708-16 [15872007] Physiol Rev. 2006 Jan;86(1):1-23 [16371594] Acta Crystallogr D Biol Crystallogr. 2006 Aug;62(Pt 8):859-66 [16855301] Nat Rev Mol Cell Biol. 2007 Jan;8(1):63-73 [17183361] Biochem J. 2007 Oct 1;407(1):69-77 [17516914] Neuron. 2007 Nov 21;56(4):670-88 [18031684] Acta Crystallogr D Biol Crystallogr. 2008 Jan;64(Pt 1):61-9 [18094468] Nat Methods. 2008 Apr;5(4):277-8 [18376388] Handb Exp Pharmacol. 2009;(191):163-93 [19089330] J Biol Chem. 2009 May 29;284(22):14796-808 [19282289] Acta Crystallogr D Biol Crystallogr. 2010 Feb;66(Pt 2):213-21 [20124702] J Struct Biol. 2010 Oct;172(1):3-13 [20541610] Acta Crystallogr D Biol Crystallogr. 2011 Apr;67(Pt 4):235-42 [21460441] PLoS One. 2011;6(4):e18413 [21526164] Acta Crystallogr D Biol Crystallogr. 2012 Apr;68(Pt 4):352-67 [22505256] Int J Mol Sci. 2013;14(4):8025-46 [23584022] Acta Crystallogr D Biol Crystallogr. 2013 Jul;69(Pt 7):1215-22 [23793147] Nat Protoc. 2014 Jan;9(1):156-70 [24356774] Structure. 2014 Jan 7;22(1):116-24 [24239458] Biochemistry. 2014 Nov 4;53(43):6725-7 [25271401] Physiol Rev. 2002 Jul;82(3):769-824 [12087135] Neurochem Res. 1993 Jan;18(1):27-42 [8385276] J Biol Chem. 1993 Jun 25;268(18):13586-91 [8514791] Proc Natl Acad Sci U S A. 1994 Sep 27;91(20):9426-30 [7937783] PLoS Pathog. 2015 Feb;11(2):e1004639 [25646845] N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1074/jbc.M115.691303 ER - TY - JOUR T1 - Structural Basis of Stereospecificity in the Bacterial Enzymatic Cleavage of β-Aryl Ether Bonds in Lignin. AN - 1770878408; 26637355 AB - Lignin is a combinatorial polymer comprising monoaromatic units that are linked via covalent bonds. Although lignin is a potential source of valuable aromatic chemicals, its recalcitrance to chemical or biological digestion presents major obstacles to both the production of second-generation biofuels and the generation of valuable coproducts from lignin's monoaromatic units. Degradation of lignin has been relatively well characterized in fungi, but it is less well understood in bacteria. A catabolic pathway for the enzymatic breakdown of aromatic oligomers linked via β-aryl ether bonds typically found in lignin has been reported in the bacterium Sphingobium sp. SYK-6. Here, we present x-ray crystal structures and biochemical characterization of the glutathione-dependent β-etherases, LigE and LigF, from this pathway. The crystal structures show that both enzymes belong to the canonical two-domain fold and glutathione binding site architecture of the glutathione S-transferase family. Mutagenesis of the conserved active site serine in both LigE and LigF shows that, whereas the enzymatic activity is reduced, this amino acid side chain is not absolutely essential for catalysis. The results include descriptions of cofactor binding sites, substrate binding sites, and catalytic mechanisms. Because β-aryl ether bonds account for 50-70% of all interunit linkages in lignin, understanding the mechanism of enzymatic β-aryl ether cleavage has significant potential for informing ongoing studies on the valorization of lignin. JF - The Journal of biological chemistry AU - Helmich, Kate E AU - Pereira, Jose Henrique AU - Gall, Daniel L AU - Heins, Richard A AU - McAndrew, Ryan P AU - Bingman, Craig AU - Deng, Kai AU - Holland, Keefe C AU - Noguera, Daniel R AU - Simmons, Blake A AU - Sale, Kenneth L AU - Ralph, John AU - Donohue, Timothy J AU - Adams, Paul D AU - Phillips, George N AD - From the Department of Biochemistry, University of Wisconsin, Madison, Wisconsin 53706, the United States Department of Energy Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, University of Wisconsin, Madison, Wisconsin 53726. ; the Joint BioEnergy Institute, Emeryville, California 94608, the Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720. ; the United States Department of Energy Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, University of Wisconsin, Madison, Wisconsin 53726, the Departments of Civil and Environmental Engineering and. ; the Joint BioEnergy Institute, Emeryville, California 94608, the Biological and Engineering Sciences Center, Sandia National Laboratories, Livermore, California 94551. ; From the Department of Biochemistry, University of Wisconsin, Madison, Wisconsin 53706. ; the United States Department of Energy Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, University of Wisconsin, Madison, Wisconsin 53726, Bacteriology, University of Wisconsin, Madison, Wisconsin 53706, tdonohue@bact.wisc.edu. ; the Joint BioEnergy Institute, Emeryville, California 94608, the Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, the Department of Bioengineering, University of California, Berkeley, California 94720, and pdadams@lbl.gov. ; the Department of Biochemistry and Cell Biology, Rice University, Houston, Texas 77251 georgep@rice.edu. Y1 - 2016/03/04/ PY - 2016 DA - 2016 Mar 04 SP - 5234 EP - 5246 VL - 291 IS - 10 KW - Bacterial Proteins KW - 0 KW - Lignin KW - 9005-53-2 KW - Oxidoreductases KW - EC 1.- KW - aryl ether cleaving enzyme KW - Index Medicus KW - enzyme catalysis KW - X-ray crystallography KW - stereoselectivity KW - enzyme mechanism KW - lignin degradation KW - protein structure KW - plant cell wall KW - enzyme structure KW - structural enzymology KW - Conserved Sequence KW - Molecular Sequence Data KW - Amino Acid Sequence KW - Substrate Specificity KW - Proteobacteria -- enzymology KW - Protein Binding KW - Bacterial Proteins -- genetics KW - Oxidoreductases -- genetics KW - Oxidoreductases -- metabolism KW - Bacterial Proteins -- chemistry KW - Bacterial Proteins -- metabolism KW - Oxidoreductases -- chemistry KW - Catalytic Domain KW - Lignin -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1770878408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Joint+Aquatic+Sciences+Meeting+%28JASM+2014%29&rft.atitle=Microbial+Diversity+and+Carbon+Cycling+in+San+Francisco+Bay+Wetlands&rft.au=Theroux%2C+S%3BHartman%2C+W%3BHe%2C+S%3BTringe%2C+S&rft.aulast=Theroux&rft.aufirst=S&rft.date=2014-05-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Joint+Aquatic+Sciences+Meeting+%28JASM+2014%29&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-08-09 N1 - Date created - 2016-03-05 N1 - Date revised - 2017-02-17 N1 - Genetic sequence - 1GSQ; PDB; 1LJR; 4XT0; 2GSR; 3LFL; 2PMT; 2GST; 1GUH; 4G10; 4YAN; 4YAM N1 - SuppNotes - Cited By: Structure. 1998 Mar 15;6(3):309-22 [9551553] J Comput Chem. 2011 Jul 30;32(10):2149-59 [21541955] J Mol Biol. 1998 Aug 7;281(1):135-47 [9680481] Acta Crystallogr D Biol Crystallogr. 2004 Dec;60(Pt 12 Pt 1):2126-32 [15572765] Protein Expr Purif. 2005 Apr;40(2):256-67 [15766867] Annu Rev Pharmacol Toxicol. 2005;45:51-88 [15822171] Int Microbiol. 2005 Sep;8(3):195-204 [16200498] Biosci Biotechnol Biochem. 2007 Jan;71(1):1-15 [17213657] Biochem J. 2007 Apr 15;403(2):267-74 [17223798] Nucleic Acids Res. 2007 Jul;35(Web Server issue):W375-83 [17452350] Biochem J. 2007 Aug 15;406(1):115-23 [17484723] J Mol Biol. 2007 Sep 21;372(3):774-97 [17681537] Acta Crystallogr D Biol Crystallogr. 2008 Jan;64(Pt 1):61-9 [18094468] Proteins. 2008 May 1;71(2):982-94 [18004753] FEBS J. 2009 Jan;276(1):58-75 [19016852] Genome Biol. 2008;9(12):242 [19133109] Acta Crystallogr D Biol Crystallogr. 2009 Jun;65(Pt 6):582-601 [19465773] Appl Environ Microbiol. 2009 Aug;75(16):5195-201 [19542348] PLoS One. 2009;4(12):e8119 [19956581] Acta Crystallogr D Biol Crystallogr. 2010 Feb;66(Pt 2):213-21 [20124702] Nat Protoc. 2010 Apr;5(4):725-38 [20360767] J Biol Chem. 2011 Feb 11;286(6):4271-9 [21106529] Drug Metab Rev. 2011 May;43(2):138-51 [21428697] Curr Opin Biotechnol. 2011 Jun;22(3):394-400 [21071202] Nucleic Acids Res. 2011 Jul;39(Web Server issue):W270-7 [21624888] Nat Prod Rep. 2011 Nov;28(12):1883-96 [21918777] FEBS Lett. 2012 Nov 16;586(22):3944-50 [23058289] J Biol Chem. 2012 Nov 9;287(46):39001-11 [23007392] PLoS One. 2013;8(10):e77985 [24205054] J Agric Food Chem. 1999 Aug;47(8):2991-6 [10552598] Proteins. 2001 Jan 1;42(1):38-48 [11093259] J Basic Microbiol. 2001;41(3-4):185-227 [11512451] Biochem J. 2001 Nov 15;360(Pt 1):1-16 [11695986] J Bacteriol. 2003 Mar;185(6):1768-75 [12618439] J Comput Chem. 2004 Oct;25(13):1605-12 [15264254] Science. 1991 Oct 4;254(5028):51-8 [1925561] J Mol Biol. 1993 Jul 5;232(1):192-212 [8331657] Biochemistry. 1994 Feb 8;33(5):1043-52 [8110735] Eur J Biochem. 1994 Mar 15;220(3):645-61 [8143720] J Mol Biol. 1994 Oct 14;243(1):72-92 [7932743] Biochemistry. 1995 Apr 25;34(16):5317-28 [7727393] Chem Res Toxicol. 1997 Jan;10(1):2-18 [9074797] FEBS Lett. 1998 Feb 20;423(2):122-4 [9512342] PLoS One. 2013;8(11):e80298 [24278272] J Biol Chem. 2014 Mar 21;289(12):8656-67 [24509858] Science. 2014 May 16;344(6185):1246843 [24833396] Structure. 1998 Jun 15;6(6):721-34 [9655824] N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1074/jbc.M115.694307 ER - TY - JOUR T1 - Solution-Processable Glass LiI-Li4 SnS4 Superionic Conductors for All-Solid-State Li-Ion Batteries. AN - 1769980879; 26690558 AB - A new, highly conductive (4.1 × 10(-4) S cm(-1) at 30 °C), highly deformable, and dry-air-stable glass 0.4LiI-0.6Li4 SnS4 is prepared using a homogeneous methanol solution. The solution process enables the wetting of any exposed surface of the active materials with highly conductive solidified electrolytes (0.4LiI-0.6Li4 SnS4), resulting in considerable improvements in the electrochemical performance of these electrodes over conventional mixture electrodes. JF - Advanced materials (Deerfield Beach, Fla.) AU - Park, Kern Ho AU - Oh, Dae Yang AU - Choi, Young Eun AU - Nam, Young Jin AU - Han, Lili AU - Kim, Ju-Young AU - Xin, Huolin AU - Lin, Feng AU - Oh, Seung M AU - Jung, Yoon Seok AD - School of Energy and Chemical Engineering, Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, South Korea. ; Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA. ; Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, South Korea. ; Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA. ; School of Chemical and Biological Engineering, Seoul National University, 599 Gwanangno, Gwanak-gu, Seoul, 151-742, South Korea. Y1 - 2016/03/02/ PY - 2016 DA - 2016 Mar 02 SP - 1874 EP - 1883 VL - 28 IS - 9 KW - solid electrolytes KW - electrodes KW - li-ion batteries KW - nanostructures KW - composites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769980879?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advanced+materials+%28Deerfield+Beach%2C+Fla.%29&rft.atitle=Solution-Processable+Glass+LiI-Li4+SnS4+Superionic+Conductors+for+All-Solid-State+Li-Ion+Batteries.&rft.au=Park%2C+Kern+Ho%3BOh%2C+Dae+Yang%3BChoi%2C+Young+Eun%3BNam%2C+Young+Jin%3BHan%2C+Lili%3BKim%2C+Ju-Young%3BXin%2C+Huolin%3BLin%2C+Feng%3BOh%2C+Seung+M%3BJung%2C+Yoon+Seok&rft.aulast=Park&rft.aufirst=Kern&rft.date=2016-03-02&rft.volume=28&rft.issue=9&rft.spage=1874&rft.isbn=&rft.btitle=&rft.title=Advanced+materials+%28Deerfield+Beach%2C+Fla.%29&rft.issn=1521-4095&rft_id=info:doi/10.1002%2Fadma.201505008 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-06-29 N1 - Date created - 2016-03-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1002/adma.201505008 ER - TY - JOUR T1 - Analysis of laboratory data on ultrasonic monitoring of permeability reduction due to biopolymer formation in unconsolidated granular media AN - 1808370214; PQ0002777135 AB - We show how to estimate the fluid permeability changes due to accumulated biopolymer within the pore space of a granular material using laboratory measurements of overall permeability, together with various well-known quantitative measures (e.g., porosity, specific surface area, and formation factor) of the granular medium microstructure. The main focus of the paper is on mutual validation of existing theory and a synthesis of new experimental results. We find that the theory and data are in good agreement within normal experimental uncertainties. We also establish quantitative empirical relationships between seismic and/or acoustic attenuation and overall permeability for these same systems. JF - Geophysical Prospecting AU - Berryman, J G AU - Kwon, T-H AU - Dou, S AU - Ajo-Franklin, J B AU - Hubbard, S S AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, Berkeley, CA, 94720, USA. Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 445 EP - 455 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 64 IS - 2 SN - 0016-8025, 0016-8025 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Permeability KW - Pores KW - Acoustics KW - Ultrasonics KW - Porosity KW - Monitoring KW - Q2 09102:Institutes and organizations KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808370214?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Prospecting&rft.atitle=Analysis+of+laboratory+data+on+ultrasonic+monitoring+of+permeability+reduction+due+to+biopolymer+formation+in+unconsolidated+granular+media&rft.au=Berryman%2C+J+G%3BKwon%2C+T-H%3BDou%2C+S%3BAjo-Franklin%2C+J+B%3BHubbard%2C+S+S&rft.aulast=Berryman&rft.aufirst=J&rft.date=2016-03-01&rft.volume=64&rft.issue=2&rft.spage=445&rft.isbn=&rft.btitle=&rft.title=Geophysical+Prospecting&rft.issn=00168025&rft_id=info:doi/10.1111%2F1365-2478.12295 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Permeability; Ultrasonics; Porosity; Pores; Acoustics; Monitoring DO - http://dx.doi.org/10.1111/1365-2478.12295 ER - TY - JOUR T1 - Coupled thermal-hydrological-mechanical behavior of rock mass surrounding a high-temperature thermal energy storage cavern at shallow depth AN - 1797542778; 2016-053750 AB - We numerically model the thermal-hydrological-mechanical (THM) processes within the rock mass surrounding a cavern used for thermal energy storage (TES). We consider a cylindrical rock cavern with a height of 50 m and a radius of 10 m storing thermal energy of 350 degrees C as a conceptual TES model, and simulate its operation for thirty years. At first, the insulator performance are not considered for the purpose of investigating the possible coupled THM behavior of the surrounding rock mass; then, the effects of an insulator are examined for different insulator thicknesses. The key concerns are hydro-thermal multiphase flow and heat transport in the rock mass around the thermal storage cavern, the effect of evaporation of rock mass, thermal impact on near the ground surface and the mechanical behavior of the surrounding rock mass. It is shown that the rock temperature around the cavern rapidly increases in the early stage and, consequently, evaporation of groundwater occurs, raising the fluid pressure. However, evaporation and multiphase flow does not have a significant effect on the heat transfer and mechanical behavior in spite of the high-temperature (350 degrees C) heat source. The simulations showed that large-scale heat flow around a cavern is expected to be conduction-dominated for a reasonable value of rock mass permeability. Thermal expansion as a result of the heating of the rock mass from the storage cavern leads to a ground surface uplift on the order of a few centimeters, and to the development of tensile stress above the storage cavern, increasing the potentials for shear and tensile failures after a few years of the operation. Finally, the analysis shows that high tangential stress in proximity of the storage cavern can some shear failure and local damage, although large rock wall failure could likely be controlled with appropriate insulators and reinforcement. JF - International Journal of Rock Mechanics and Mining Sciences (1997) AU - Park, Jung-Wook AU - Rutqvist, Jonny AU - Ryu, Dongwoo AU - Park, Eui-Seob AU - Synn, Joong-Ho Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 149 EP - 161 PB - Elsevier, Oxford-New York VL - 83 SN - 1365-1609, 1365-1609 KW - TOUGH2 KW - rock masses KW - shear strength KW - heat storage KW - hydraulics KW - numerical models KW - thermal properties KW - stress KW - mechanical properties KW - tensile strength KW - simulation KW - temperature KW - rock mechanics KW - computer programs KW - multiphase flow KW - heat transfer KW - thermomechanical properties KW - high temperature KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797542778?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%281997%29&rft.atitle=Coupled+thermal-hydrological-mechanical+behavior+of+rock+mass+surrounding+a+high-temperature+thermal+energy+storage+cavern+at+shallow+depth&rft.au=Park%2C+Jung-Wook%3BRutqvist%2C+Jonny%3BRyu%2C+Dongwoo%3BPark%2C+Eui-Seob%3BSynn%2C+Joong-Ho&rft.aulast=Park&rft.aufirst=Jung-Wook&rft.date=2016-03-01&rft.volume=83&rft.issue=&rft.spage=149&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%281997%29&rft.issn=13651609&rft_id=info:doi/10.1016%2Fj.ijrmms.2016.01.007 L2 - http://www.sciencedirect.com/science/journal/13651609 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2016-06-17 N1 - CODEN - IJRMA2 N1 - SubjectsTermNotLitGenreText - computer programs; heat storage; heat transfer; high temperature; hydraulics; mechanical properties; multiphase flow; numerical models; rock masses; rock mechanics; shear strength; simulation; stress; temperature; tensile strength; thermal properties; thermomechanical properties; TOUGH2 DO - http://dx.doi.org/10.1016/j.ijrmms.2016.01.007 ER - TY - JOUR T1 - Transforming biomass conversion with ionic liquids: process intensification and the development of a high-gravity, one-pot process for the production of cellulosic ethanol AN - 1790933977; PQ0003093523 AB - Producing concentrated sugars and minimizing water usage are key elements in the economics and environmental sustainability of advanced biofuels. Conventional pretreatment processes that require a water-wash step can result in losses of fermentable sugars and generate large volumes of wastewater or solid waste. To address these problems, we have developed high gravity biomass processing with a one-pot conversion technology that includes ionic liquid pretreatment, enzymatic saccharification, and yeast fermentation for the production of concentrated fermentable sugars and high-titer cellulosic ethanol. The use of dilute bio-derived ionic liquids (a.k.a. bionic liquids) enables one-pot, high-gravity bioethanol production due to their low toxicity to the hydrolytic enzyme mixtures and microbes used. We increased biomass digestibility at >30 wt% loading by understanding the relationship between ionic liquid and biomass loading, yielding 41.1 g L super(-1) of ethanol (equivalent to an overall yield of 74.8% on glucose basis) using an integrated one-pot fed-batch system. Our technoeconomic analysis indicates that the optimized one-pot configuration provides significant economic and environmental benefits for cellulosic biorefineries by reducing the amount of ionic liquid required by similar to 90% and pretreatment-related water inputs and wastewater generation by similar to 85%. In turn, these improvements can reduce net electricity use, greenhouse gas-intensive chemical inputs for wastewater treatment, and waste generation. The result is an overall 40% reduction in the cost of cellulosic ethanol produced and a reduction in local burdens on water resources and waste management infrastructure. JF - Energy & Environmental Science AU - Xu, Feng AU - Sun, Jian AU - Konda, NVSNMurthy AU - Shi, Jian AU - Dutta, Tanmoy AU - Scown, Corinne D AU - Simmons, Blake A AU - Singh, Seema AD - Joint BioEnergy Institute; Lawrence Berkeley National Laboratory; Berkeley; CA; USA Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 1042 EP - 1049 PB - Royal Society of Chemistry, c/o Springer-Verlag New York Inc. Secaucus New Jersey 07096 2485 United States VL - 9 IS - 3 SN - 1754-5692, 1754-5692 KW - Biotechnology and Bioengineering Abstracts; Environment Abstracts KW - Yeasts KW - Gravity KW - Fermentation KW - Glucose KW - Water resources KW - Electricity KW - Wastewater treatment KW - Solid wastes KW - Waste management KW - Batch culture KW - Infrastructure KW - Economics KW - Ethanol KW - Sugar KW - Enzymes KW - Toxicity KW - Biomass KW - Sustainability KW - Greenhouses KW - Energy KW - Digestibility KW - Waste water KW - Wastewater KW - Biofuels KW - Technology KW - ENA 03:Energy KW - W 30950:Waste Treatment & Pollution Clean-up UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790933977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%26+Environmental+Science&rft.atitle=Transforming+biomass+conversion+with+ionic+liquids%3A+process+intensification+and+the+development+of+a+high-gravity%2C+one-pot+process+for+the+production+of+cellulosic+ethanol&rft.au=Xu%2C+Feng%3BSun%2C+Jian%3BKonda%2C+NVSNMurthy%3BShi%2C+Jian%3BDutta%2C+Tanmoy%3BScown%2C+Corinne+D%3BSimmons%2C+Blake+A%3BSingh%2C+Seema&rft.aulast=Xu&rft.aufirst=Feng&rft.date=2016-03-01&rft.volume=9&rft.issue=3&rft.spage=1042&rft.isbn=&rft.btitle=&rft.title=Energy+%26+Environmental+Science&rft.issn=17545692&rft_id=info:doi/10.1039%2Fc5ee02940f LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 29 N1 - Last updated - 2016-08-17 N1 - SubjectsTermNotLitGenreText - Sugar; Fermentation; Gravity; Glucose; Water resources; Enzymes; Toxicity; Electricity; Biomass; Wastewater treatment; Solid wastes; Batch culture; Greenhouses; Energy; Economics; Digestibility; Waste water; Biofuels; Ethanol; Yeasts; Sustainability; Waste management; Infrastructure; Wastewater; Technology DO - http://dx.doi.org/10.1039/c5ee02940f ER - TY - JOUR T1 - Estimating groundwater dynamics at a Colorado River floodplain site using historical hydrological data and climate information AN - 1787982607; PQ0002966925 AB - Long-term prediction of groundwater dynamics is important for assessing water resources and their impacts on biogeochemical cycling. However, estimating future groundwater dynamics is challenging due to the wide range of spatiotemporal scales in hydrological processes and uncertainty in future climate conditions. In this study, we develop a Bayesian model to combine small-scale historical hydrological data with large-scale climate information to estimate groundwater dynamics at a floodplain site in Rifle, Colorado. Although we have only a few years of groundwater elevation measurements, we have 47 years of streamflow data from a gaging station approximately 43 km upstream and long-term climate prediction on the Upper Colorado River Basin. To estimate future daily groundwater dynamics, we first develop a time series model to downscale the monthly streamflow derived from climate information to daily streamflow, and then transform the daily streamflow to groundwater dynamics at the downstream floodplain site. We use Monte Carlo methods to estimate future groundwater dynamics at the site through sampling from the joint posterior probability distribution. The results suggest that although future groundwater levels are expected to be similar to the current levels, the timing of the high groundwater levels is predicted to occur about 1 month earlier. The developed framework is extendable to other sites to estimate future groundwater dynamics given disparate data sets and climate projections. Additionally, the obtained estimates are being used as input to a site-specific watershed reactive transport models to predict how climate-induced changes will influence future biogeochemical cycling relevant to a variety of ecosystem services. Key Points: * Predict groundwater dynamics using historical streamflow and climate information * No significant trends found in future groundwater levels at the Rifle study site * Peak groundwater levels occur 1 month earlier toward the end of this century JF - Water Resources Research AU - Chen, Jinsong AU - Hubbard, Susan S AU - Williams, Kenneth H AU - Ficklin, Darren L AD - Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, California, USA. Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 1881 EP - 1898 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 52 IS - 3 SN - 0043-1397, 0043-1397 KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts KW - Climate change KW - Statistical analysis KW - Water resources KW - Monte Carlo method KW - Groundwater Level KW - Watersheds KW - Groundwater levels KW - USA, Colorado R. KW - Climatic change forecasting KW - Hydrologic Models KW - Climatology KW - Streamflow data KW - Hydrologic Data KW - Climate models KW - Hydrologic analysis KW - Biogeochemistry KW - Estimating KW - Climates KW - Groundwater flow KW - Climate KW - USA, Arizona, Colorado R. basin KW - Brackish KW - Streamflow KW - River basins KW - Water Table KW - Stream flow KW - Flood Plains KW - USA, Colorado KW - Flood plains KW - Groundwater KW - Water resources research KW - Time series models KW - Future climates KW - AQ 00001:Water Resources and Supplies KW - SW 5010:Network design KW - M2 556.16:Runoff (556.16) KW - Q2 09105:Research programmes and expeditions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1787982607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Estimating+groundwater+dynamics+at+a+Colorado+River+floodplain+site+using+historical+hydrological+data+and+climate+information&rft.au=Chen%2C+Jinsong%3BHubbard%2C+Susan+S%3BWilliams%2C+Kenneth+H%3BFicklin%2C+Darren+L&rft.aulast=Chen&rft.aufirst=Jinsong&rft.date=2016-03-01&rft.volume=52&rft.issue=3&rft.spage=1881&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2015WR017777 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Flood plains; Biogeochemistry; Climate change; Climate; Statistical analysis; Water resources; River basins; Watersheds; Stream flow; Hydrologic analysis; Climate models; Groundwater flow; Monte Carlo method; Groundwater levels; Climatic change forecasting; Climatology; Water resources research; Streamflow data; Time series models; Future climates; Flood Plains; Hydrologic Models; Estimating; Climates; Streamflow; Water Table; Groundwater Level; Groundwater; Hydrologic Data; USA, Colorado R.; USA, Colorado; USA, Arizona, Colorado R. basin; Brackish DO - http://dx.doi.org/10.1002/2015WR017777 ER - TY - JOUR T1 - Isopentenyl diphosphate (IPP)-bypass mevalonate pathways for isopentenol production. AN - 1763702651; 26708516 AB - Branched C5 alcohols are promising biofuels with favorable combustion properties. A mevalonate (MVA)-based isoprenoid biosynthetic pathway for C5 alcohols was constructed in Escherichia coli using genes from several organisms, and the pathway was optimized to achieve over 50% theoretical yield. Although the MVA pathway is energetically less efficient than the native methylerythritol 4-phosphate (MEP) pathway, implementing the MVA pathway in bacterial hosts such as E. coli is advantageous due to its lack of endogenous regulation. The MVA and MEP pathways intersect at isopentenyl diphosphate (IPP), the direct precursor to isoprenoid-derived C5 alcohols and initial precursor to longer chain terpenes, which makes independent regulation of the pathways difficult. In pursuit of the complete "decoupling" of the MVA pathway from native cellular regulation, we designed novel IPP-bypass MVA pathways for C5 alcohol production by utilizing promiscuous activities of two enzymes, phosphomevalonate decarboxylase (PMD) and an E. coli-endogenous phosphatase (AphA). These bypass pathways have reduced energetic requirements, are further decoupled from intrinsic regulation, and are free from IPP-related toxicity. In addition to these benefits, we demonstrate that reduced aeration rate has less impact on the bypass pathway than the original MVA pathway. Finally, we showed that performance of the bypass pathway was primarily determined by the activity of PMD. We designed PMD mutants with improved activity and demonstrated titer increases in the mutant strains. These modified pathways would be a good platform for industrial production of isopentenol and related chemicals such as isoprene. JF - Metabolic engineering AU - Kang, Aram AU - George, Kevin W AU - Wang, George AU - Baidoo, Edward AU - Keasling, Jay D AU - Lee, Taek Soon AD - Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608, USA; Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. ; Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608, USA; Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; Department of Bioengineering, University of California, Berkeley, CA 94720, USA; Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720, USA. ; Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608, USA; Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. Electronic address: tslee@lbl.gov. Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 25 EP - 35 VL - 34 KW - Escherichia coli Proteins KW - 0 KW - Hemiterpenes KW - Organophosphorus Compounds KW - Pentanols KW - isopentenol KW - 27214-40-0 KW - isopentenyl pyrophosphate KW - 358-71-4 KW - Mevalonic Acid KW - S5UOB36OCZ KW - Index Medicus KW - Isopentenol KW - IPP KW - Biofuel KW - Mevalonate pathway KW - Isoprenol KW - Toxicity KW - Aeration KW - Phosphomevalonate decarboxylase KW - Signal Transduction -- physiology KW - Escherichia coli Proteins -- metabolism KW - Metabolome -- physiology KW - Metabolic Flux Analysis KW - Escherichia coli Proteins -- genetics KW - Metabolic Engineering -- methods KW - Escherichia coli -- metabolism KW - Pentanols -- isolation & purification KW - Metabolic Networks and Pathways -- physiology KW - Organophosphorus Compounds -- metabolism KW - Hemiterpenes -- metabolism KW - Mevalonic Acid -- metabolism KW - Escherichia coli -- genetics KW - Pentanols -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1763702651?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Metabolic+engineering&rft.atitle=Isopentenyl+diphosphate+%28IPP%29-bypass+mevalonate+pathways+for+isopentenol+production.&rft.au=Kang%2C+Aram%3BGeorge%2C+Kevin+W%3BWang%2C+George%3BBaidoo%2C+Edward%3BKeasling%2C+Jay+D%3BLee%2C+Taek+Soon&rft.aulast=Kang&rft.aufirst=Aram&rft.date=2016-03-01&rft.volume=34&rft.issue=&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Metabolic+engineering&rft.issn=1096-7184&rft_id=info:doi/10.1016%2Fj.ymben.2015.12.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-10-24 N1 - Date created - 2016-02-07 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1016/j.ymben.2015.12.002 ER - TY - JOUR T1 - Does phylogeny control U (super K) (sub 37) -temperature sensitivity? Implications for lacustrine alkenone paleothermometry AN - 1793208339; 2016-047263 AB - Alkenone paleothermometry (via the U (super K) (sub 37) and U (super K') (sub 37) indices) has long been used to reconstruct sea surface temperature and has more recently been proven effective in lacustrine settings. Genetic analyses indicate that there is a diversity of different alkenone-producing lacustrine haptophytes, and differences among U (super K) (sub 37) -temperature calibrations suggest that unique calibrations might be required to quantify past temperature variation from individual lakes. The only term necessary to quantify U (super K) (sub 37) -inferred temperature relative to a reference period (e.g., modern temperature 20th Century mean) is the slope of the calibration regression, the U (super K) (sub 37) -temperature sensitivity (i.e., the change in U (super K) (sub 37) per degrees C temperature change). Here, we bring together all of the existing U (super K) (sub 37) -temperature calibrations in order to compare the variability among U (super K) (sub 37) -temperature sensitivities. We also report a new in situ U (super K) (sub 37) -temperature calibration along with environmental genomic analysis based on the 18S rRNA gene of an alkenone producing haptophyte from lake Vikvatnet in Norway. We propose and test the hypothesis that U (super K) (sub 37) -temperature sensitivity is controlled by phylogeny and that this term can be used to quantify past temperature variation from lake sediments if the genetic identity of the lake's alkenone-producer is known. Using the existing calibration data sets, we determine four phylotype-specific U (super K) (sub 37) -temperature sensitivities for use in cases where in situ calibration is unavailable but the phylogeny of the alkenone producers is known. JF - Geochimica et Cosmochimica Acta AU - D'Andrea, William J AU - Theroux, Susanna AU - Bradley, Raymond S AU - Huang, Xiaohui Y1 - 2016/02/15/ PY - 2016 DA - 2016 Feb 15 SP - 168 EP - 180 PB - Elsevier, New York, NY VL - 175 SN - 0016-7037, 0016-7037 KW - geologic thermometry KW - Bayesian analysis KW - gas chromatograms KW - Europe KW - calibration KW - algae KW - paleotemperature KW - sediments KW - alkenones KW - pH KW - Plantae KW - Western Europe KW - in situ KW - phylogeny KW - biochemistry KW - statistical analysis KW - Lake Vikvatnet KW - Scandinavia KW - organic compounds KW - paleoenvironment KW - chromatograms KW - mathematical methods KW - lacustrine environment KW - reconstruction KW - sea-surface temperature KW - Norway KW - regression analysis KW - microfossils KW - lake sediments KW - ketones KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793208339?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Does+phylogeny+control+U+%28super+K%29+%28sub+37%29+-temperature+sensitivity%3F+Implications+for+lacustrine+alkenone+paleothermometry&rft.au=D%27Andrea%2C+William+J%3BTheroux%2C+Susanna%3BBradley%2C+Raymond+S%3BHuang%2C+Xiaohui&rft.aulast=D%27Andrea&rft.aufirst=William&rft.date=2016-02-15&rft.volume=175&rft.issue=&rft.spage=168&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2015.10.031 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 72 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-06-02 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - algae; alkenones; Bayesian analysis; biochemistry; calibration; chromatograms; Europe; gas chromatograms; geologic thermometry; in situ; ketones; lacustrine environment; lake sediments; Lake Vikvatnet; mathematical methods; microfossils; Norway; organic compounds; paleoenvironment; paleotemperature; pH; phylogeny; Plantae; reconstruction; regression analysis; Scandinavia; sea-surface temperature; sediments; statistical analysis; Western Europe DO - http://dx.doi.org/10.1016/j.gca.2015.10.031 ER - TY - JOUR T1 - MaxBin 2.0: an automated binning algorithm to recover genomes from multiple metagenomic datasets AN - 1768572209; PQ0002688398 AB - Summary: The recovery of genomes from metagenomic datasets is a critical step to defining the functional roles of the underlying uncultivated populations. We previously developed MaxBin, an automated binning approach for high-throughput recovery of microbial genomes from metagenomes. Here we present an expanded binning algorithm, MaxBin 2.0, which recovers genomes from co-assembly of a collection of metagenomic datasets. Tests on simulated datasets revealed that MaxBin 2.0 is highly accurate in recovering individual genomes, and the application of MaxBin 2.0 to several metagenomes from environmental samples demonstrated that it could achieve two complementary goals: recovering more bacterial genomes compared to binning a single sample as well as comparing the microbial community composition between different sampling environments.Availability and implementation: MaxBin 2.0 is freely available at http://sourceforge.net/projects/maxbin/ under BSD license. Supplementary information: Supplementary data are available at Bioinformatics online. JF - Bioinformatics AU - Wu, Yu-Wei AU - Simmons, Blake A AU - Singer, Steven W AD - *To whom correspondence should be addressed., ywwei@lbl.gov Y1 - 2016/02/15/ PY - 2016 DA - 2016 Feb 15 SP - 605 EP - 607 PB - Oxford University Press, Great Clarendon Street Oxford OX2 6DP United Kingdom VL - 32 IS - 4 SN - 1367-4803, 1367-4803 KW - Biochemistry Abstracts 2: Nucleic Acids; Biotechnology and Bioengineering Abstracts KW - Genomes KW - Community composition KW - Data processing KW - Algorithms KW - Bioinformatics KW - Sampling KW - Internet KW - N 14810:Methods KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1768572209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=MaxBin+2.0%3A+an+automated+binning+algorithm+to+recover+genomes+from+multiple+metagenomic+datasets&rft.au=Wu%2C+Yu-Wei%3BSimmons%2C+Blake+A%3BSinger%2C+Steven+W&rft.aulast=Wu&rft.aufirst=Yu-Wei&rft.date=2016-02-15&rft.volume=32&rft.issue=4&rft.spage=605&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/10.1093%2Fbioinformatics%2Fbtv638 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Last updated - 2016-05-13 N1 - SubjectsTermNotLitGenreText - Genomes; Community composition; Data processing; Algorithms; Sampling; Bioinformatics; Internet DO - http://dx.doi.org/10.1093/bioinformatics/btv638 ER - TY - JOUR T1 - Minimal physical requirements for crystal growth self-poisoning. AN - 1765578893; 26874500 AB - Self-poisoning is a kinetic trap that can impair or prevent crystal growth in a wide variety of physical settings. Here we use dynamic mean-field theory and computer simulation to argue that poisoning is ubiquitous because its emergence requires only the notion that a molecule can bind in two (or more) ways to a crystal; that those ways are not energetically equivalent; and that the associated binding events occur with sufficiently unequal probability. If these conditions are met then the steady-state growth rate is in general a non-monotonic function of the thermodynamic driving force for crystal growth, which is the characteristic of poisoning. Our results also indicate that relatively small changes of system parameters could be used to induce recovery from poisoning. JF - The Journal of chemical physics AU - Whitelam, Stephen AU - Dahal, Yuba Raj AU - Schmit, Jeremy D AD - Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA. ; Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA. Y1 - 2016/02/14/ PY - 2016 DA - 2016 Feb 14 SP - 064903 VL - 144 IS - 6 KW - Index Medicus KW - Molecular Dynamics Simulation KW - Crystallization KW - Thermodynamics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765578893?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+chemical+physics&rft.atitle=Minimal+physical+requirements+for+crystal+growth+self-poisoning.&rft.au=Whitelam%2C+Stephen%3BDahal%2C+Yuba+Raj%3BSchmit%2C+Jeremy+D&rft.aulast=Whitelam&rft.aufirst=Stephen&rft.date=2016-02-14&rft.volume=144&rft.issue=6&rft.spage=064903&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+chemical+physics&rft.issn=1089-7690&rft_id=info:doi/10.1063%2F1.4941457 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-10-27 N1 - Date created - 2016-02-15 N1 - Date revised - 2017-02-18 N1 - SuppNotes - Cited By: Phys Rev Lett. 2000 Nov 13;85(20):4397-400 [11060647] Methods. 2004 Nov;34(3):266-72 [15325646] Biophys J. 1997 Aug;73(2):571-80 [9251778] Science. 1997 Sep 26;277(5334):1975-8 [9302288] J Phys Chem B. 2010 Jun 10;114(22):7620-30 [20423058] J Am Chem Soc. 2012 Mar 7;134(9):3934-7 [22339624] J Chem Phys. 2013 May 14;138(18):185102 [23676074] Soft Matter. 2014 Sep 14;10(34):6404-16 [25005537] Proc Natl Acad Sci U S A. 2015 May 5;112(18):5591-6 [25901326] Phys Rev Lett. 2015 Jun 19;114(24):245501 [26196984] Soft Matter. 2016 Jan 7;12(1):93-8 [26439913] Colloids Surf B Biointerfaces. 2016 Jan 1;137:22-31 [26236019] N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1063/1.4941457 ER - TY - JOUR T1 - Fast high-resolution prediction of multi-phase flow in fractured formations AN - 1832602798; 772150-11 AB - The success of a thermal water flood for enhanced oil recovery (EOR) depends on a detailed representation of the geometrical and hydraulic properties of the fracture network, which induces discrete, channelized flow behavior. The resulting high-resolution model is typically computationally very demanding. Here, we use the Proper Orthogonal Decomposition Mapping Method to reconstruct high-resolution solutions based on efficient low-resolution solutions. The method requires training a reduced order model (ROM) using high- and low-resolution solutions determined for a relatively short simulation time. For a cyclic EOR operation, the oil production rate and the heterogeneous structure of the oil saturation are accurately reproduced even after 105 cycles, reducing the computational cost by at least 85%. The method described is general and can be potentially utilized with any multiphase flow model. Abstract Copyright (2016) Elsevier, B.V. JF - Advances in Water Resources AU - Pau, George Shu Heng AU - Finsterle, Stefan AU - Zhang, Yingqi Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 80 EP - 85 PB - Elsevier, Oxford VL - 88 SN - 0309-1708, 0309-1708 KW - proper orthogonal decomposition mapping method KW - downscaling KW - high-resolution methods KW - fractures KW - saturation KW - multiphase flow KW - rates KW - petroleum KW - simulation KW - production KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832602798?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Fast+high-resolution+prediction+of+multi-phase+flow+in+fractured+formations&rft.au=Pau%2C+George+Shu+Heng%3BFinsterle%2C+Stefan%3BZhang%2C+Yingqi&rft.aulast=Pau&rft.aufirst=George+Shu&rft.date=2016-02-01&rft.volume=88&rft.issue=&rft.spage=80&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/10.1016%2Fj.advwatres.2015.12.008 L2 - http://www.sciencedirect.com/science/journal/03091708 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Number of references - 24 N1 - Document feature - illus. incl. 1 table, block diags. N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - downscaling; fractures; high-resolution methods; multiphase flow; petroleum; production; proper orthogonal decomposition mapping method; rates; saturation; simulation DO - http://dx.doi.org/10.1016/j.advwatres.2015.12.008 ER - TY - JOUR T1 - Accurate and efficient prediction of fine-resolution hydrologic and carbon dynamic simulations from coarse-resolution models AN - 1812216690; 2016-070535 AB - The topography, and the biotic and abiotic parameters are typically upscaled to make watershed-scale hydrologic-biogeochemical models computationally tractable. However, upscaling procedure can produce biases when nonlinear interactions between different processes are not fully captured at coarse resolutions. Here we applied the Proper Orthogonal Decomposition Mapping Method (PODMM) to downscale the field solutions from a coarse (7 km) resolution grid to a fine (220 m) resolution grid. PODMM trains a reduced-order model (ROM) with coarse-resolution and fine-resolution solutions, here obtained using PAWS+CLM, a quasi-3-D watershed processes model that has been validated for many temperate watersheds. Subsequent fine-resolution solutions were approximated based only on coarse-resolution solutions and the ROM. The approximation errors were efficiently quantified using an error estimator. By jointly estimating correlated variables and temporally varying the ROM parameters, we further reduced the approximation errors by up to 20%. We also improved the method's robustness by constructing multiple ROMs using different set of variables, and selecting the best approximation based on the error estimator. The ROMs produced accurate downscaling of soil moisture, latent heat flux, and net primary production with O(1000) reduction in computational cost. The subgrid distributions were also nearly indistinguishable from the ones obtained using the fine-resolution model. Compared to coarse-resolution solutions, biases in upscaled ROM solutions were reduced by up to 80%. This method has the potential to help address the long-standing spatial scaling problem in hydrology and enable long-time integration, parameter estimation, and stochastic uncertainty analysis while accurately representing the heterogeneities. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Water Resources Research AU - Pau, George Shu Heng AU - Shen, Chaopeng AU - Riley, William J AU - Liu, Yaning Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 791 EP - 812 PB - American Geophysical Union, Washington, DC VL - 52 IS - 2 SN - 0043-1397, 0043-1397 KW - United States KW - hydrology KW - three-dimensional models KW - numerical analysis KW - biochemistry KW - watersheds KW - prediction KW - Clinton River basin KW - transport KW - dynamics KW - Richards equation KW - carbon KW - mathematical methods KW - Michigan KW - Lake Saint Clair KW - 21:Hydrogeology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812216690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Accurate+and+efficient+prediction+of+fine-resolution+hydrologic+and+carbon+dynamic+simulations+from+coarse-resolution+models&rft.au=Pau%2C+George+Shu+Heng%3BShen%2C+Chaopeng%3BRiley%2C+William+J%3BLiu%2C+Yaning&rft.aulast=Pau&rft.aufirst=George+Shu&rft.date=2016-02-01&rft.volume=52&rft.issue=2&rft.spage=791&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2015WR017782 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 111 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-08-18 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - biochemistry; carbon; Clinton River basin; dynamics; hydrology; Lake Saint Clair; mathematical methods; Michigan; numerical analysis; prediction; Richards equation; three-dimensional models; transport; United States; watersheds DO - http://dx.doi.org/10.1002/2015WR017782 ER - TY - JOUR T1 - The fan of influence of streams and channel feedbacks to simulated land surface water and carbon dynamics AN - 1812216414; 2016-070540 AB - Large-scale land models assume unidirectional land-to-river hydrological interactions, without considering feedbacks between channels and land. Using a tested, physically based model with explicit multiway interactions between overland, channel, wetland, and groundwater flows, we assessed how the representation and properties of channels influence simulated land surface hydrologic, biogeochemical, and ecosystem dynamics. A zone near the channels where various fluxes and states are significantly influenced by the channels, referred to as the fan of influence (FoI) of channels, has been identified. We elucidated two mechanisms inducing the model-derived FoI: the base flow mechanism, in which incised, gaining streams lower the water table and induce more base flow, and the relatively more efficient conveyance of the channel network compared to overland flow. We systematically varied drainage density and grid resolution to quantify the size of the FoI, which is found to span a large fraction of the watershed (25-50%) for hydrologic variables including depth to water table and recharge, etc. The FoI is more pronounced with low-resolution simulations but remains noticeable in hyperresolution (25 m) subbasin simulations. The FoI and the channel influence on basin-average fluxes are also similar in simulations with alternative parameter sets. We found that high-order, entrenched streams cause larger FoI. In addition, removing the simulated channels has disproportionally large influence on modeled wetland areas and inundation duration, which has implications for coupled biogeochemical or ecological modeling. Our results suggest that explicit channel representation provides important feedbacks to land surface dynamics which should be considered in meso or large-scale simulations. Since grid refinement incurs prohibitive computational cost, subgrid channel parameterization has advantages in efficiency over grid-based representations that do not distinguish between overland flow and channel flow. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Water Resources Research AU - Shen, Chaopeng AU - Riley, William J AU - Smithgall, Kurt R AU - Melack, John M AU - Fang, Kuai Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 880 EP - 902 PB - American Geophysical Union, Washington, DC VL - 52 IS - 2 SN - 0043-1397, 0043-1397 KW - United States KW - networks KW - numerical models KW - surface water KW - data processing KW - channels KW - Grand River KW - transport KW - streamflow KW - dynamics KW - carbon KW - digital simulation KW - drainage basins KW - streams KW - Michigan KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812216414?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=The+fan+of+influence+of+streams+and+channel+feedbacks+to+simulated+land+surface+water+and+carbon+dynamics&rft.au=Shen%2C+Chaopeng%3BRiley%2C+William+J%3BSmithgall%2C+Kurt+R%3BMelack%2C+John+M%3BFang%2C+Kuai&rft.aulast=Shen&rft.aufirst=Chaopeng&rft.date=2016-02-01&rft.volume=52&rft.issue=2&rft.spage=880&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2015WR018086 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 86 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-08-18 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - carbon; channels; data processing; digital simulation; drainage basins; dynamics; Grand River; Michigan; networks; numerical models; streamflow; streams; surface water; transport; United States DO - http://dx.doi.org/10.1002/2015WR018086 ER - TY - JOUR T1 - Permeability variations within mining-induced fractured rock mass and its influence on groundwater inrush AN - 1807504995; 2016-064799 AB - This paper is concerned with the evaluation of permeability of fractured rock mass due to the cover stress re-establishment, which is a major factor in controlling water and gas flow rate induced by mining operations in fractured rock. The case study considered in this paper is based on the results of observations of groundwater inrush and a decrease in water inflow from the fractured roof strata due to mining advancing in the Taiping Coalmine, Shandong Province, China. A conceptual model of an effective porous media was used to assess the permeability distribution in the fractured zone induced by coal mining. The cover stress re-establishment in gob fractured rock mass was evaluated using an empirical formula based on the surface subsidence. A simplified conceptual model of the fractured zone was used to evaluate the deformation of fractured zone along with the evaluation of changes in the rock permeability above the gob due to the cover stress re-establishment. These data were then used to calculate the water inflow rate into the panel. Predicted water inflow rates have been found to be in good agreement with those from monitoring data. This study improved the understanding of the mechanisms of the post-mining cover stress re-establishment on permeability change of the overburden fracture rock strata. These results can then be applied for numerical simulations of the process of overburden failure and consequent groundwater inrush due to coal mining. Copyright 2016 Springer-Verlag Berlin Heidelberg JF - Environmental Earth Sciences AU - Wang, W X AU - Sui, W H AU - Faybishenko, B AU - Stringfellow, W T Y1 - 2016/02// PY - 2016 DA - February 2016 EP - Article 326 PB - Springer, Berlin VL - 75 IS - 4 SN - 1866-6280, 1866-6280 KW - fractured materials KW - mining KW - Far East KW - geologic hazards KW - underground mining KW - land subsidence KW - rock mechanics KW - ground water KW - fractures KW - Shandong China KW - Asia KW - China KW - mines KW - failures KW - overburden KW - stress KW - coal mines KW - fluid flow KW - porous materials KW - deformation KW - Taiping Mine KW - fracture zones KW - natural hazards KW - theoretical models KW - permeability KW - 30:Engineering geology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807504995?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Earth+Sciences&rft.atitle=Permeability+variations+within+mining-induced+fractured+rock+mass+and+its+influence+on+groundwater+inrush&rft.au=Wang%2C+W+X%3BSui%2C+W+H%3BFaybishenko%2C+B%3BStringfellow%2C+W+T&rft.aulast=Wang&rft.aufirst=W&rft.date=2016-02-01&rft.volume=75&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Environmental+Earth+Sciences&rft.issn=18666280&rft_id=info:doi/10.1007%2Fs12665-015-5064-5 L2 - http://www.springerlink.com/content/1866-6280 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 46 N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2016-07-29 N1 - SubjectsTermNotLitGenreText - Asia; China; coal mines; deformation; failures; Far East; fluid flow; fracture zones; fractured materials; fractures; geologic hazards; ground water; land subsidence; mines; mining; natural hazards; overburden; permeability; porous materials; rock mechanics; Shandong China; stress; Taiping Mine; theoretical models; underground mining DO - http://dx.doi.org/10.1007/s12665-015-5064-5 ER - TY - JOUR T1 - Effect of medium permeability anisotropy on the morphological evolution of two non-uniformities in a geochemical dissolution system AN - 1789752885; 2016-042439 AB - The morphological evolutions of chemical dissolution fronts have attracted increasing interest in the field of the geological sciences and in industrial applications. Extensive research based on numerical simulations has been conducted to understand how various mechanisms and processes influence the morphological evolution of chemical dissolution fronts within geological media. Most researchers in previous studies have assumed the medium permeability to be isotropic for developing numerical models, despite isotropic geological media being uncommon in the real world. This study investigates the effect of medium permeability anisotropy on the morphological evolutions of two non-uniformities with higher permeability in a geochemical dissolution system. A series of numerical simulations are performed to evaluate the effect of medium permeability anisotropy on the morphological evolution of a chemical dissolution front. The simulation results indicate that the patterns of the dissolution reaction front are substantially affected by medium permeability anisotropy. An increase in the permeability anisotropy ratio, which is defined as the ratio of the permeability in the transverse direction to that in the longitudinal direction, enhances the dominance of the flow-focusing effect over the stabilizing or merging effect induced by diffusion/dispersion mechanism. Therefore, an increase in the permeability anisotropy ratio can increase the fingering length of the dissolution front or cause the dissolution front to have a more unstable pattern. By contrast, a reduction in the permeability anisotropy ratio will weaken the flow-focusing effect, thereby reducing the fingering length of the dissolution front or changing the front morphology such that it has a more stable status. The effect of the permeability anisotropy ratio on the morphological evolution tends to decrease when the Zhao number (negative dimensionless upstream pressure gradient) of the system increases. The consideration of medium permeability anisotropy in the geochemical dissolution model renders the simulation of the morphological evolutions of dissolution reaction fronts more realistic. Abstract Copyright (2016) Elsevier, B.V. JF - Journal of Hydrology AU - Lai, Keng-Hsin AU - Chen, Jui-Sheng AU - Liu, Chen-Wuing AU - Shu, Shao-Yiu AU - Steefel, Carl Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 224 EP - 233 PB - Elsevier, Amsterdam VL - 533 SN - 0022-1694, 0022-1694 KW - dispersivity KW - diffusion KW - anisotropic materials KW - numerical models KW - numerical analysis KW - solutes KW - mathematical models KW - equations KW - solubility KW - simulation KW - hydrochemistry KW - reservoir rocks KW - ground water KW - reactivity KW - movement KW - mathematical methods KW - reservoir properties KW - mobilization KW - hydraulic conductivity KW - geochemistry KW - permeability KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789752885?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=Effect+of+medium+permeability+anisotropy+on+the+morphological+evolution+of+two+non-uniformities+in+a+geochemical+dissolution+system&rft.au=Lai%2C+Keng-Hsin%3BChen%2C+Jui-Sheng%3BLiu%2C+Chen-Wuing%3BShu%2C+Shao-Yiu%3BSteefel%2C+Carl&rft.aulast=Lai&rft.aufirst=Keng-Hsin&rft.date=2016-02-01&rft.volume=533&rft.issue=&rft.spage=224&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2015.11.039 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 29 N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-05-19 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - anisotropic materials; diffusion; dispersivity; equations; geochemistry; ground water; hydraulic conductivity; hydrochemistry; mathematical methods; mathematical models; mobilization; movement; numerical analysis; numerical models; permeability; reactivity; reservoir properties; reservoir rocks; simulation; solubility; solutes DO - http://dx.doi.org/10.1016/j.jhydrol.2015.11.039 ER - TY - JOUR T1 - Influence of hydrological, biogeochemical and temperature transients on subsurface carbon fluxes in a flood plain environment AN - 1785230092; PQ0002814982 AB - Flood plains play a potentially important role in the global carbon cycle. The accumulation of organic matter in flood plains often induces the formation of chemically reduced groundwater and sediments along riverbanks. In this study, our objective is to evaluate the cumulative impact of such reduced zones, water table fluctuations, and temperature gradients on subsurface carbon fluxes in a flood plain at Rifle, Colorado located along the Colorado River. 2-D coupled variably-saturated, non-isothermal flow and biogeochemical reactive transport modeling was applied to improve our understanding of the abiotic and microbially mediated reactions controlling carbon dynamics at the Rifle site. Model simulations considering only abiotic reactions (thus ignoring microbial reactions) underestimated CO sub(2) partial pressures observed in the unsaturated zone and severely underestimated inorganic (and overestimated organic) carbon fluxes to the river compared to simulations with biotic pathways. Both model simulations and field observations highlighted the need to include microbial contributions from chemolithoautotrophic processes (e.g., Fe super(+2) and S super(-2) oxidation) to match locally-observed high CO sub(2) concentrations above reduced zones. Observed seasonal variations in CO sub(2) concentrations in the unsaturated zone could not be reproduced without incorporating temperature gradients in the simulations. Incorporating temperature fluctuations resulted in an increase in the annual groundwater carbon fluxes to the river by 170 % to 3.3 g m super(-2) d super(-1), while including water table variations resulted in an overall decrease in the simulated fluxes. We conclude that spatial microbial and redox zonation as well as temporal fluctuations of temperature and water table depth contribute significantly to subsurface carbon fluxes in flood plains and need to be represented appropriately in model simulations. JF - Biogeochemistry AU - Arora, Bhavna AU - Spycher, Nicolas F AU - Steefel, Carl I AU - Molins, Sergi AU - Bill, Markus AU - Conrad, Mark E AU - Dong, Wenming AU - Faybishenko, Boris AU - Tokunaga, Tetsu K AU - Wan, Jiamin AU - Williams, Kenneth H AU - Yabusaki, Steven B AD - Energy Geosciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., MS 74-327R, Berkeley, CA, 94720, USA, barora@lbl.gov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 367 EP - 396 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 127 IS - 2-3 SN - 0168-2563, 0168-2563 KW - Ecology Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Water table KW - Freshwater KW - Temperature Gradient KW - Models KW - USA, Colorado R. KW - Hydrologic Models KW - Carbon KW - Ground water KW - Pressure KW - Seasonal variations KW - Modelling KW - Temperature effects KW - Rivers KW - Biogeochemistry KW - Organic matter KW - Temperature KW - Carbon cycle KW - River discharge KW - Zonation KW - Water temperature KW - Sediments KW - Flood Plains KW - USA, Colorado KW - Flood plains KW - Oxidation KW - Microorganisms KW - Groundwater KW - Carbon dioxide KW - Carbon Dioxide KW - Q2 09262:Methods and instruments KW - SW 0810:General KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1785230092?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biogeochemistry&rft.atitle=Influence+of+hydrological%2C+biogeochemical+and+temperature+transients+on+subsurface+carbon+fluxes+in+a+flood+plain+environment&rft.au=Arora%2C+Bhavna%3BSpycher%2C+Nicolas+F%3BSteefel%2C+Carl+I%3BMolins%2C+Sergi%3BBill%2C+Markus%3BConrad%2C+Mark+E%3BDong%2C+Wenming%3BFaybishenko%2C+Boris%3BTokunaga%2C+Tetsu+K%3BWan%2C+Jiamin%3BWilliams%2C+Kenneth+H%3BYabusaki%2C+Steven+B&rft.aulast=Arora&rft.aufirst=Bhavna&rft.date=2016-02-01&rft.volume=127&rft.issue=2-3&rft.spage=367&rft.isbn=&rft.btitle=&rft.title=Biogeochemistry&rft.issn=01682563&rft_id=info:doi/10.1007%2Fs10533-016-0186-8 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-04-01 N1 - Number of references - 133 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Rivers; Carbon; Flood plains; Biogeochemistry; River discharge; Water table; Water temperature; Carbon dioxide; Modelling; Temperature effects; Organic matter; Carbon cycle; Zonation; Sediments; Models; Oxidation; Ground water; Pressure; Seasonal variations; Flood Plains; Hydrologic Models; Microorganisms; Temperature; Groundwater; Temperature Gradient; Carbon Dioxide; USA, Colorado R.; USA, Colorado; Freshwater DO - http://dx.doi.org/10.1007/s10533-016-0186-8 ER - TY - JOUR T1 - On the use of Darcy's law and invasion-percolation approaches for modeling large-scale geologic carbon sequestration AN - 1776665772; PQ0002777012 AB - Most large-scale flow and transport simulations for geologic carbon sequestration (GCS) applications are carried out using simulators that solve flow equations arising from Darcy's law. Recently, the computational advantages of invasion-percolation (IP) modeling approaches have been presented. We show that both the Darcy's-law- and the gravity-capillary balance solved by IP approaches can be derived from the same multiphase continuum momentum equation. More specifically, Darcy's law arises from assuming creeping flow with no viscous momentum transfer to stationary solid grains, while it is assumed in the IP approach that gravity and capillarity are the dominant driving forces in a quasi-static two-phase (or more) system. There is a long history of use of Darcy's law for large-scale GCS simulation. However, simulations based on Darcy's law commonly include significant numerical dispersion as users employ large grid blocks to keep run times practical. In contrast, the computational simplicity of IP approaches allows large-scale models to honor fine-scale hydrostratigraphic details of the storage formation which makes these IP models suitable for analyzing the impact of small-scale heterogeneities on flow. However, the lack of time-dependence in the IP models is a significant disadvantage, while the ability of Darcy's law to simulate a range of flows from single-phase- and pressure-gradient-driven flows to buoyant multiphase gravity-capillary flow is a significant advantage. We believe on balance that Darcy's law simulations should be the preferred approach to large-scale GCS simulations. copyright 2015 Society of Chemical Industry and John Wiley & Sons, Ltd JF - Greenhouse Gases: Science and Technology AU - Oldenburg, Curtis M AU - Mukhopadhyay, Sumit AU - Cihan, Abdullah AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA. Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 19 EP - 33 PB - Wiley-Blackwell, Baffins Lane Chichester W. Sussex PO19 1UD United Kingdom VL - 6 IS - 1 SN - 2152-3878, 2152-3878 KW - Meteorological & Geoastrophysical Abstracts; Environment Abstracts KW - Historical account KW - Capillarity KW - Darcy's law KW - Simulation KW - Chemical industry KW - Storage KW - Carbon sequestration KW - Numerical simulations KW - Geology KW - Grains KW - Greenhouse gases KW - Dispersion models KW - Momentum transfer KW - Science and technology KW - M2 551.5:General (551.5) KW - ENA 20:Weather Modification & Geophysical Change UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1776665772?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Greenhouse+Gases%3A+Science+and+Technology&rft.atitle=On+the+use+of+Darcy%27s+law+and+invasion-percolation+approaches+for+modeling+large-scale+geologic+carbon+sequestration&rft.au=Oldenburg%2C+Curtis+M%3BMukhopadhyay%2C+Sumit%3BCihan%2C+Abdullah&rft.aulast=Oldenburg&rft.aufirst=Curtis&rft.date=2016-02-01&rft.volume=6&rft.issue=1&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=Greenhouse+Gases%3A+Science+and+Technology&rft.issn=21523878&rft_id=info:doi/10.1002%2Fghg.1564 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-03-01 N1 - Last updated - 2016-04-13 N1 - SubjectsTermNotLitGenreText - Numerical simulations; Darcy's law; Dispersion models; Greenhouse gases; Science and technology; Momentum transfer; Storage; Historical account; Carbon sequestration; Capillarity; Simulation; Geology; Grains; Chemical industry DO - http://dx.doi.org/10.1002/ghg.1564 ER - TY - JOUR T1 - Structured heterogeneity in a marine terrace chronosequence; upland mottling AN - 1773799914; 2016-025855 AB - Soil mottles generally are interpreted as a product of reducing conditions during periods of water saturation. The upland soils of the Santa Cruz, CA, marine terrace chronosequence display an evolving sequence of reticulate mottling from the youngest soil (65 ka) without mottles to the oldest soil (225 ka) with well-developed mottles. The mottles consist of an interconnected network of clay and C-enriched regions (gray, 2.5Y 6/1) bordered by leached parent material (white, 2.5Y 8/1) within a diminishing matrix of oxidized parent material (orange, 7.5YR 5/8). The mottles develop in soils that formed from relatively uniform nearshore sediments and occur below the depth of soil bioturbation. To explore how a presumably wetland feature occurs in an unsaturated upland soil, physical and chemical characteristics of mottle separates (orange, gray, and white) were compared through the deep time represented by the soil chronosequence. Mineralogical, isotopic, and surface-area differences among mottle separates indicate that rhizogenic centimeter-scale mass transfer acting across millennia is an integral part of weathering, pedogenesis, and C and nutrient transfer. Elemental analysis, electron microscopy, and Fe-isotope systematics indicate that mottle development is driven by deep roots together with their fungal and microbial symbionts. Taken together, these data suggest that deep soil horizons on old stable landforms can develop reticulate mottling as the long-term imprint of rhizospheric processes. The processes of rhizogenic mottle formation appear to regulate pedogenesis, nutrients, and C sequestration at depth in unsaturated zones. JF - Vadose Zone Journal AU - Schulz, Marjorie AU - Stonestrom, David A AU - Lawrence, Corey AU - Bullen, Tom AU - Fitzpatrick, John AU - Kyker-Snowman, Emily AU - Manning, Jane AU - Mnich, Meagan AU - Faybishenko, Boris AU - Hubbard, Susan AU - Brodie, Eoin AU - Nico, Peter AU - Molz, Fred AU - Hunt, Allen G AU - Pachepsky, Yakov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 14 PB - Soil Science Society of America, Madison, WI VL - 15 IS - 2 SN - 1539-1663, 1539-1663 KW - calcium KW - X-ray diffraction data KW - moisture KW - unsaturated zone KW - California KW - carbon KW - aluminum KW - chronosequences KW - shore features KW - pedogenesis KW - patterns KW - Quaternary KW - roots KW - electron microscopy data KW - Cr-52 KW - depth KW - heterogeneous materials KW - Pleistocene KW - SEM data KW - microorganisms KW - United States KW - Santa Cruz California KW - isotopes KW - middle Pleistocene KW - complexity KW - uplands KW - rhizosphere KW - stable isotopes KW - iron KW - upper Pleistocene KW - Cenozoic KW - fungi KW - mottles KW - marine terraces KW - heterogeneity KW - Santa Cruz County California KW - Eh KW - soils KW - alkaline earth metals KW - statistical analysis KW - rates KW - weathering KW - biogenic processes KW - reticulation KW - metals KW - nickel KW - Fe-54 KW - Ni-60 KW - geomorphology KW - Fe-56 KW - 02D:Isotope geochemistry KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799914?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Structured+heterogeneity+in+a+marine+terrace+chronosequence%3B+upland+mottling&rft.au=Schulz%2C+Marjorie%3BStonestrom%2C+David+A%3BLawrence%2C+Corey%3BBullen%2C+Tom%3BFitzpatrick%2C+John%3BKyker-Snowman%2C+Emily%3BManning%2C+Jane%3BMnich%2C+Meagan%3BFaybishenko%2C+Boris%3BHubbard%2C+Susan%3BBrodie%2C+Eoin%3BNico%2C+Peter%3BMolz%2C+Fred%3BHunt%2C+Allen+G%3BPachepsky%2C+Yakov&rft.aulast=Schulz&rft.aufirst=Marjorie&rft.date=2016-02-01&rft.volume=15&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=15391663&rft_id=info:doi/10.2136%2Fvzj2015.07.0102 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 77 N1 - PubXState - WI N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; aluminum; biogenic processes; calcium; California; carbon; Cenozoic; chronosequences; complexity; Cr-52; depth; Eh; electron microscopy data; Fe-54; Fe-56; fungi; geomorphology; heterogeneity; heterogeneous materials; iron; isotopes; marine terraces; metals; microorganisms; middle Pleistocene; moisture; mottles; Ni-60; nickel; patterns; pedogenesis; Pleistocene; Quaternary; rates; reticulation; rhizosphere; roots; Santa Cruz California; Santa Cruz County California; SEM data; shore features; soils; stable isotopes; statistical analysis; United States; unsaturated zone; uplands; upper Pleistocene; weathering; X-ray diffraction data DO - http://dx.doi.org/10.2136/vzj2015.07.0102 ER - TY - JOUR T1 - Mechanisms of early microbial establishment on growing root surfaces AN - 1773799867; 2016-025857 AB - Microbial activity in the soil surrounding plant roots contributes to nutrient bioavailability, crop growth, and soil biodiversity and fertility. Colonization of the rhizosphere and the rhizoplane in particular requires early establishment on root surfaces where sources of nutrients are abundant. In this study, we investigated the physical interactions taking place between bacteria and the root surface when a root tip enters unexplored regions of soil. We developed a theoretical framework that generalizes the prevailing approaches for describing root growth kinematics and bacterial growth and adhesion on root surfaces. We found that the root elongation rate, bacterial attachment rate, and root cap carrying capacity are key traits for successful establishment. Models also indicate that chemotaxis is more important for radial transport and adhesion than for longitudinal movement of bacteria. Controls on bacterial attachment are required for both efficient root colonization and subsequent dispersal of bacteria in soil. The findings of this study help to understand the establishment of the structure and composition of microbial communities in soil. JF - Vadose Zone Journal AU - Dupuy, Lionel X AU - Silk, Wendy K AU - Faybishenko, Boris AU - Hubbard, Susan AU - Brodie, Eoin AU - Nico, Peter AU - Molz, Fred AU - Hunt, Allen G AU - Pachepsky, Yakov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 13 PB - Soil Science Society of America, Madison, WI VL - 15 IS - 2 SN - 1539-1663, 1539-1663 KW - soils KW - roots KW - one-dimensional models KW - complexity KW - unsaturated zone KW - mechanism KW - chemotaxis KW - simulation KW - exudation KW - colonization KW - boundary conditions KW - biogenic processes KW - transport KW - bacteria KW - mobility KW - microorganisms KW - growth KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799867?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Mechanisms+of+early+microbial+establishment+on+growing+root+surfaces&rft.au=Dupuy%2C+Lionel+X%3BSilk%2C+Wendy+K%3BFaybishenko%2C+Boris%3BHubbard%2C+Susan%3BBrodie%2C+Eoin%3BNico%2C+Peter%3BMolz%2C+Fred%3BHunt%2C+Allen+G%3BPachepsky%2C+Yakov&rft.aulast=Dupuy&rft.aufirst=Lionel&rft.date=2016-02-01&rft.volume=15&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=15391663&rft_id=info:doi/10.2136%2Fvzj2015.06.0094 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 55 N1 - PubXState - WI N1 - Document feature - illus. N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; boundary conditions; chemotaxis; colonization; complexity; exudation; growth; mechanism; microorganisms; mobility; one-dimensional models; roots; simulation; soils; transport; unsaturated zone DO - http://dx.doi.org/10.2136/vzj2015.06.0094 ER - TY - JOUR T1 - A hybrid reduced-order model of fine-resolution hydrologic simulations at a polygonal tundra site AN - 1773799816; 2016-025860 AB - High-resolution predictions of land surface hydrological dynamics are desirable for improved investigations of regional- and watershed-scale processes. Direct deterministic simulations of fine-resolution land surface variables present many challenges, including high computational cost. We therefore propose the use of reduced-order modeling techniques to facilitate emulation of fine-resolution simulations. We use an emulator, Gaussian process regression, to approximate fine-resolution four-dimensional soil moisture fields predicted using a three-dimensional surface-subsurface hydrological simulator (PFLOTRAN). A dimension-reduction technique known as "proper orthogonal decomposition" is further used to improve the efficiency of the resulting reduced-order model (ROM). The ROM reduces simulation computational demand to negligible levels compared to the underlying fine-resolution model. In addition, the ROM that we constructed is equipped with an uncertainty estimate, allowing modelers to construct a ROM consistent with uncertainty in the measured data. The ROM is also capable of constructing statistically equivalent analogs that can be used in uncertainty and sensitivity analyses. We apply the technique to four polygonal tundra sites near Barrow, Alaska that are part of the Department of Energy's Next-Generation Ecosystem Experiments (NGEE)-Arctic project. The ROM is trained for each site using simulated soil moisture from 1998-2000 and validated using the simulated data for 2002 and 2006. The average relative RMSEs of the ROMs are under 1%. JF - Vadose Zone Journal AU - Liu, Yaning AU - Bisht, Gautam AU - Subin, Zachary M AU - Riley, William J AU - Pau, George Shu Heng AU - Faybishenko, Boris AU - Hubbard, Susan AU - Brodie, Eoin AU - Nico, Peter AU - Molz, Fred AU - Hunt, Allen G AU - Pachepsky, Yakov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 14 PB - Soil Science Society of America, Madison, WI VL - 15 IS - 2 SN - 1539-1663, 1539-1663 KW - United States KW - PFLOTRAN KW - tundra KW - complexity KW - unsaturated zone KW - ecosystems KW - digital terrain models KW - simulation KW - Barrow Alaska KW - transport KW - reactive transport KW - hydrodynamics KW - ecology KW - polygons KW - soils KW - hydrology KW - NGEE KW - Arctic region KW - statistical analysis KW - equations KW - Arctic Coastal Plain KW - evapotranspiration KW - boundary conditions KW - two-dimensional models KW - Gaussian process regression KW - Next-Generation Ecosystem Experiments KW - Community Earth System Model KW - Alaska KW - seasonal variations KW - glacial geology KW - patterned ground KW - regression analysis KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=A+hybrid+reduced-order+model+of+fine-resolution+hydrologic+simulations+at+a+polygonal+tundra+site&rft.au=Liu%2C+Yaning%3BBisht%2C+Gautam%3BSubin%2C+Zachary+M%3BRiley%2C+William+J%3BPau%2C+George+Shu+Heng%3BFaybishenko%2C+Boris%3BHubbard%2C+Susan%3BBrodie%2C+Eoin%3BNico%2C+Peter%3BMolz%2C+Fred%3BHunt%2C+Allen+G%3BPachepsky%2C+Yakov&rft.aulast=Liu&rft.aufirst=Yaning&rft.date=2016-02-01&rft.volume=15&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=15391663&rft_id=info:doi/10.2136%2Fvzj2015.05.0068 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 91 N1 - PubXState - WI N1 - Document feature - illus. N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - Alaska; Arctic Coastal Plain; Arctic region; Barrow Alaska; boundary conditions; Community Earth System Model; complexity; digital terrain models; ecology; ecosystems; equations; evapotranspiration; Gaussian process regression; glacial geology; hydrodynamics; hydrology; Next-Generation Ecosystem Experiments; NGEE; patterned ground; PFLOTRAN; polygons; reactive transport; regression analysis; seasonal variations; simulation; soils; statistical analysis; transport; tundra; two-dimensional models; United States; unsaturated zone DO - http://dx.doi.org/10.2136/vzj2015.05.0068 ER - TY - JOUR T1 - Soil as complex systems AN - 1773799813; 2016-025854 JF - Vadose Zone Journal AU - Faybishenko, Boris AU - Hubbard, Susan AU - Brodie, Eoin AU - Nico, Peter AU - Molz, Fred AU - Hunt, Allen G AU - Pachepsky, Yakov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 139 PB - Soil Science Society of America, Madison, WI VL - 15 IS - 2 SN - 1539-1663, 1539-1663 KW - systems KW - soils KW - physical properties KW - biogenic processes KW - complexity KW - interfaces KW - chemical properties KW - interactions KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799813?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Soil+as+complex+systems&rft.au=Faybishenko%2C+Boris%3BHubbard%2C+Susan%3BBrodie%2C+Eoin%3BNico%2C+Peter%3BMolz%2C+Fred%3BHunt%2C+Allen+G%3BPachepsky%2C+Yakov&rft.aulast=Faybishenko&rft.aufirst=Boris&rft.date=2016-02-01&rft.volume=15&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=15391663&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - PubXState - WI N1 - Document feature - illus. N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - biogenic processes; chemical properties; complexity; interactions; interfaces; physical properties; soils; systems ER - TY - JOUR T1 - Experimental studies and model analysis of noble gas fractionation in porous media AN - 1773799514; 2016-025856 AB - The noble gases, which are chemically inert under normal terrestrial conditions but vary systematically across a wide range of atomic mass and diffusivity, offer a multicomponent approach to investigating gas dynamics in unsaturated soil horizons, including transfer of gas between saturated zones, unsaturated zones, and the atmosphere. To evaluate the degree to which fractionation of noble gases in the presence of an advective-diffusive flux agrees with existing theory, a simple laboratory sand column experiment was conducted. Pure CO (sub 2) was injected at the base of the column, providing a series of constant CO (sub 2) fluxes through the column. At five fixed sampling depths within the system, samples were collected for CO (sub 2) and noble gas analyses, and ambient pressures were measured. Both the advection-diffusion and dusty gas models were used to simulate the behavior of CO (sub 2) and noble gases under the experimental conditions, and the simulations were compared with the measured depth-dependent concentration profiles of the gases. Given the relatively high permeability of the sand column (5X10 (super -11) m (super 2) ), Knudsen diffusion terms were small, and both the dusty gas model and the advection-diffusion model accurately predicted the concentration profiles of the CO (sub 2) and atmospheric noble gases across a range of CO (sub 2) flux from approximately 700 to 10,000 g m (super -2) d (super -1) . The agreement between predicted and measured gas concentrations demonstrated that, when applied to natural systems, the multi-component capability provided by the noble gases can be exploited to constrain component and total gas fluxes of non-conserved (CO (sub 2) ) and conserved (noble gas) species or attributes of the soil column relevant to gas transport, such as porosity, tortuosity, and gas saturation. JF - Vadose Zone Journal AU - Ding, Xin AU - Kennedy, B Mack AU - Evans, William C AU - Stonestrom, David A AU - Faybishenko, Boris AU - Hubbard, Susan AU - Brodie, Eoin AU - Nico, Peter AU - Molz, Fred AU - Hunt, Allen G AU - Pachepsky, Yakov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 12 PB - Soil Science Society of America, Madison, WI VL - 15 IS - 2 SN - 1539-1663, 1539-1663 KW - one-dimensional models KW - unsaturated zone KW - simulation KW - carbon dioxide KW - throughflow KW - laboratory studies KW - transport KW - sampling KW - noble gases KW - neon KW - movement KW - sediments KW - helium KW - soils KW - sand KW - experimental studies KW - diffusion KW - pressure KW - numerical models KW - clastic sediments KW - fluid flow KW - atmosphere KW - porous materials KW - advection KW - xenon KW - krypton KW - gases KW - argon KW - permeability KW - 25:Soils KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799514?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Experimental+studies+and+model+analysis+of+noble+gas+fractionation+in+porous+media&rft.au=Ding%2C+Xin%3BKennedy%2C+B+Mack%3BEvans%2C+William+C%3BStonestrom%2C+David+A%3BFaybishenko%2C+Boris%3BHubbard%2C+Susan%3BBrodie%2C+Eoin%3BNico%2C+Peter%3BMolz%2C+Fred%3BHunt%2C+Allen+G%3BPachepsky%2C+Yakov&rft.aulast=Ding&rft.aufirst=Xin&rft.date=2016-02-01&rft.volume=15&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=15391663&rft_id=info:doi/10.2136%2Fvzj2015.06.0095 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 23 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - advection; argon; atmosphere; carbon dioxide; clastic sediments; diffusion; experimental studies; fluid flow; gases; helium; krypton; laboratory studies; movement; neon; noble gases; numerical models; one-dimensional models; permeability; porous materials; pressure; sampling; sand; sediments; simulation; soils; throughflow; transport; unsaturated zone; xenon DO - http://dx.doi.org/10.2136/vzj2015.06.0095 ER - TY - JOUR T1 - Spatio-temporal scaling of vegetation growth and soil formation from percolation theory AN - 1773799322; 2016-025865 AB - Critical path analysis (CPA) is suited to calculating the hydraulic conductivity, K, of heterogeneous porous media by quantifying the paths of least resistance. Whenever CPA can be used to calculate K, advective transport scaling relationships from percolation theory should describe solute transport. Two solute transport relationships were applied to predict soil development and edaphic constraints on natural vegetation growth. These results used known exponents from percolation theory and known subsurface flow velocities. The typical flow velocity itself constrains the optimal growth rates of cultivars. The percolation scaling relationship constraining vegetation growth was shown to be in accord with data across time scales from hours to 100,000 yr, including more than a dozen studies (and two models) of tree growth. The scaling function for soil development explains time scales for the formation of soils from years to hundreds of millions of years. Data on soil development came from 23 different studies. The key unification is the common origin of the time and space coordinates for all three relationships in the transport time through a single pore of roughly micrometer size at a typical subsurface pore-scale flow velocity. The distinction in evolving time scales is primarily a result of the hierarchical nature of vascular plant root systems, which speed up nutrient access relative to physical transport rates in the soil. The results help explain reductions in forest productivity with age, diminishing soil production with time, and the temporal distinction between chemical and biological processes in soils and their relevance to the global C cycle. JF - Vadose Zone Journal AU - Hunt, Allen G AU - Faybishenko, Boris AU - Hubbard, Susan AU - Brodie, Eoin AU - Nico, Peter AU - Molz, Fred AU - Pachepsky, Yakov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 15 PB - Soil Science Society of America, Madison, WI VL - 15 IS - 2 SN - 1539-1663, 1539-1663 KW - solute transport KW - scale factor KW - Spermatophyta KW - Populus KW - unsaturated zone KW - Coniferales KW - vegetation KW - spatial distribution KW - fungi KW - transport KW - Sequoiadendron KW - carbon KW - velocity KW - topology KW - percolation KW - Taxodiaceae KW - geochemistry KW - soils KW - hydrology KW - chemical weathering KW - seagrasses KW - Plantae KW - pedogenesis KW - living taxa KW - roots KW - Gymnospermae KW - global KW - agriculture KW - tortuosity KW - rates KW - porous materials KW - equations KW - advection KW - weathering KW - size KW - geochemical cycle KW - nutrients KW - biogenic processes KW - critical path analysis KW - heterogeneous materials KW - Sequoia KW - trees KW - temporal distribution KW - carbon cycle KW - growth KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799322?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Spatio-temporal+scaling+of+vegetation+growth+and+soil+formation+from+percolation+theory&rft.au=Hunt%2C+Allen+G%3BFaybishenko%2C+Boris%3BHubbard%2C+Susan%3BBrodie%2C+Eoin%3BNico%2C+Peter%3BMolz%2C+Fred%3BPachepsky%2C+Yakov&rft.aulast=Hunt&rft.aufirst=Allen&rft.date=2016-02-01&rft.volume=15&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=15391663&rft_id=info:doi/10.2136%2Fvzj2015.01.0013 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 50 N1 - PubXState - WI N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-05-19 N1 - SubjectsTermNotLitGenreText - advection; agriculture; biogenic processes; carbon; carbon cycle; chemical weathering; Coniferales; critical path analysis; equations; fungi; geochemical cycle; geochemistry; global; growth; Gymnospermae; heterogeneous materials; hydrology; living taxa; nutrients; pedogenesis; percolation; Plantae; Populus; porous materials; rates; roots; scale factor; seagrasses; Sequoia; Sequoiadendron; size; soils; solute transport; spatial distribution; Spermatophyta; Taxodiaceae; temporal distribution; topology; tortuosity; transport; trees; unsaturated zone; vegetation; velocity; weathering DO - http://dx.doi.org/10.2136/vzj2015.01.0013 ER - TY - JOUR T1 - Water for carbon, carbon for water AN - 1773799307; 2016-025863 AB - Plant roots exude approximately 10% of the carbon assimilated through photosynthesis into the soil, a process referred to as rhizodeposition. Here, we show that the mucilaginous fraction of the rhizodeposits, referred to as mucilage, plays a crucial role on soil-plant water relation and it has the potential to increase plant drought tolerance. Mucilage is a gel that can absorb large volumes of water, altering the physical properties of the rhizosphere and maintaining the rhizosphere wet and conductive when the soil dries. It is hypothesized that mucilage acts as a hydraulic bridge between roots and the soil, facilitating root water uptake and maintaining transpiration in dry soils. By employing a simplified model of root water uptake coupled with mucilage dynamics, we found that in a sandy soil the benefit of mucilage in maintaining root water uptake commenced to manifest when the soil matric potential dropped below approximately -0.8 MPa. This critical matric potential varied with transpiration rate, root length, and exudation rate. Below the critical potential, mucilage maintained photosynthesis and resulted in a net gain of carbon. In summary, rhizodeposition modifies the physical soil environment and has an impact on transpiration and photosynthesis. In other words: water for carbon, but also carbon for water. JF - Vadose Zone Journal AU - Carminati, Andrea AU - Kroener, Eva AU - Ahmed, Mutez A AU - Zarebanadkouki, Mohsen AU - Holz, Maire AU - Ghezzehei, Teamrat AU - Faybishenko, Boris AU - Hubbard, Susan AU - Brodie, Eoin AU - Nico, Peter AU - Molz, Fred AU - Hunt, Allen G AU - Pachepsky, Yakov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 10 PB - Soil Science Society of America, Madison, WI VL - 15 IS - 2 SN - 1539-1663, 1539-1663 KW - water KW - soils KW - photosynthesis KW - rhizodeposition KW - Plantae KW - mucilage KW - roots KW - complexity KW - photochemistry KW - unsaturated zone KW - rhizosphere KW - matric potential KW - physical properties KW - biogenic processes KW - carbon KW - transpiration KW - hydrodynamics KW - water content KW - polymers KW - exudates KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799307?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Water+for+carbon%2C+carbon+for+water&rft.au=Carminati%2C+Andrea%3BKroener%2C+Eva%3BAhmed%2C+Mutez+A%3BZarebanadkouki%2C+Mohsen%3BHolz%2C+Maire%3BGhezzehei%2C+Teamrat%3BFaybishenko%2C+Boris%3BHubbard%2C+Susan%3BBrodie%2C+Eoin%3BNico%2C+Peter%3BMolz%2C+Fred%3BHunt%2C+Allen+G%3BPachepsky%2C+Yakov&rft.aulast=Carminati&rft.aufirst=Andrea&rft.date=2016-02-01&rft.volume=15&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=15391663&rft_id=info:doi/10.2136%2Fvzj2015.04.0060 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 41 N1 - PubXState - WI N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - biogenic processes; carbon; complexity; exudates; hydrodynamics; matric potential; mucilage; photochemistry; photosynthesis; physical properties; Plantae; polymers; rhizodeposition; rhizosphere; roots; soils; transpiration; unsaturated zone; water; water content DO - http://dx.doi.org/10.2136/vzj2015.04.0060 ER - TY - JOUR T1 - Viscous-flow approach to in situ infiltration and in vitro saturated hydraulic conductivity determination AN - 1773799216; 2016-025861 AB - Infiltration is dominantly gravity driven, and a viscous-flow approach was developed. Laminar film flow equilibrates gravity with the viscous force and a constant flow velocity evolves during a period lasting 3/2 times the duration of a constant input rate, q (sub S) . Film thickness F and the specific contact area L of the film per unit soil volume are the key parameters. Sprinkler irrigation produced in situ time series of volumetric water contents, theta (z,t), as determined with TDR probes. The wetting front velocity v and the time series of the mobile water content, w(z,t) were deduced from theta (z,t). In vitro steady flow in a core of saturated soil provided volume flux density, q(z,t), and flow velocity, v, as determined from a heat front velocity. The F and L parameters of the in situ and the in vitro experiments were compared. The macropore-flow restriction states that, for a particular permeable medium, the specific contact area L must be independent from q (sub S) i.e., dL/dq (sub S) =0. If true, then the relationship of q (sub S) varies as v (super 3/2) could scale a wide range of input rates 0< or =q (sub S) < or = saturated hydraulic conductivity, K (sub sat) , into a permeable medium, and kinematic-wave theory would become a versatile tool to deal with non-equilibrium flow. The viscous-flow approach is based on hydromechanical principles similar to Darcy's law, but currently it is not suited to deduce flow properties from specified individual spatial structures of permeable media. JF - Vadose Zone Journal AU - Germann, Peter F AU - Karlen, Michel AU - Faybishenko, Boris AU - Hubbard, Susan AU - Brodie, Eoin AU - Nico, Peter AU - Molz, Fred AU - Hunt, Allen G AU - Pachepsky, Yakov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 15 PB - Soil Science Society of America, Madison, WI VL - 15 IS - 2 SN - 1539-1663, 1539-1663 KW - Luvisols KW - moisture KW - complexity KW - unsaturated zone KW - in vitro KW - Europe KW - Switzerland KW - cores KW - Richards equation KW - Central Europe KW - thickness KW - hydrodynamics KW - laminar flow KW - water KW - soils KW - experimental studies KW - soil profiles KW - in situ KW - waves KW - Darcy's law KW - drainage KW - viscous flow KW - equations KW - porosity KW - size KW - kinematics KW - viscosity KW - saturation KW - infiltration KW - Mount Bantiger KW - hydraulic conductivity KW - Bern Switzerland KW - permeability KW - field studies KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799216?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Viscous-flow+approach+to+in+situ+infiltration+and+in+vitro+saturated+hydraulic+conductivity+determination&rft.au=Germann%2C+Peter+F%3BKarlen%2C+Michel%3BFaybishenko%2C+Boris%3BHubbard%2C+Susan%3BBrodie%2C+Eoin%3BNico%2C+Peter%3BMolz%2C+Fred%3BHunt%2C+Allen+G%3BPachepsky%2C+Yakov&rft.aulast=Germann&rft.aufirst=Peter&rft.date=2016-02-01&rft.volume=15&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=15391663&rft_id=info:doi/10.2136%2Fvzj2015.05.0065 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 30 N1 - PubXState - WI N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - Bern Switzerland; Central Europe; complexity; cores; Darcy's law; drainage; equations; Europe; experimental studies; field studies; hydraulic conductivity; hydrodynamics; in situ; in vitro; infiltration; kinematics; laminar flow; Luvisols; moisture; Mount Bantiger; permeability; porosity; Richards equation; saturation; size; soil profiles; soils; Switzerland; thickness; unsaturated zone; viscosity; viscous flow; water; waves DO - http://dx.doi.org/10.2136/vzj2015.05.0065 ER - TY - JOUR T1 - Multifractal analysis of vertical profiles of soil penetration resistance at varying water contents AN - 1773799163; 2016-025862 AB - The objective of this work was to characterize the scaling properties of depth-dependent penetration resistance (PR) profiles using multifractal analyses and to explore the effects of increasing soil water deficit on the scaling heterogeneity of the studied data series. Soil PR was recorded at 11 successive dates with decreasing soil water content on a Mollisol (Argiudoll) from Entre Rios Province, Argentina. For each date, 10 replicated PR vertical profiles were measured every centimeter from 0 to 80 cm. Both singularity and Renyi spectra showed that all PR datasets exhibited a well-defined multifractal structure, so that the multifractal approach provided considerable detailed information on their depth-dependent structure. The entropy dimension, D (sub 1) , significantly (P<0.05) increased with decreasing soil water content, and its mean values ranged from 0.976 to 0.981. Therefore, the drier the soil, the more the homogeneity and evenness of the PR depth-dependent profiles. Moreover, the amplitude of the branches of the Renyi and singularity spectra accounting for the most positive statistical moments, [0, 5], significantly (P<0.05) decreased with increased soil water deficit. However, for the most negative counterparts, [0, -5], these amplitudes tended to increase, although not significantly. Subsequently, increasing soil dryness increased the homogeneity of the highest PR values, but had no significant effect on the homogeneity of the lowest PR values. The multifractal approach was useful to characterize changes in inner structure, heterogeneity, and evenness of PR vertical profiles over a period with increasing soil water deficit. JF - Vadose Zone Journal AU - Wilson, Marcelo G AU - Miras-Avalos, Jose Manuel AU - Lado, Marcos AU - Paz-Gonzalez, Antonio AU - Faybishenko, Boris AU - Hubbard, Susan AU - Brodie, Eoin AU - Nico, Peter AU - Molz, Fred AU - Hunt, Allen G AU - Pachepsky, Yakov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 10 PB - Soil Science Society of America, Madison, WI VL - 15 IS - 2 SN - 1539-1663, 1539-1663 KW - scale factor KW - penetration tests KW - moisture KW - entropy KW - complexity KW - northeastern Argentina KW - unsaturated zone KW - Oro Verde Argentina KW - Argiudolls KW - Entre Rios Argentina KW - multifractal analysis KW - fractals KW - dryness KW - water KW - soils KW - soil mechanics KW - experimental studies KW - soil profiles KW - bulk density KW - statistical analysis KW - agriculture KW - measurement KW - South America KW - Argentina KW - penetration resistance KW - Mollisols KW - field studies KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799163?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Multifractal+analysis+of+vertical+profiles+of+soil+penetration+resistance+at+varying+water+contents&rft.au=Wilson%2C+Marcelo+G%3BMiras-Avalos%2C+Jose+Manuel%3BLado%2C+Marcos%3BPaz-Gonzalez%2C+Antonio%3BFaybishenko%2C+Boris%3BHubbard%2C+Susan%3BBrodie%2C+Eoin%3BNico%2C+Peter%3BMolz%2C+Fred%3BHunt%2C+Allen+G%3BPachepsky%2C+Yakov&rft.aulast=Wilson&rft.aufirst=Marcelo&rft.date=2016-02-01&rft.volume=15&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=15391663&rft_id=info:doi/10.2136%2Fvzj2015.04.0063 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 45 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - agriculture; Argentina; Argiudolls; bulk density; complexity; dryness; Entre Rios Argentina; entropy; experimental studies; field studies; fractals; measurement; moisture; Mollisols; multifractal analysis; northeastern Argentina; Oro Verde Argentina; penetration resistance; penetration tests; scale factor; soil mechanics; soil profiles; soils; South America; statistical analysis; unsaturated zone; water DO - http://dx.doi.org/10.2136/vzj2015.04.0063 ER - TY - JOUR T1 - Permeability in two-component porous media; effective-medium approximation compared with lattice-Boltzmann simulations AN - 1773799076; 2016-025859 AB - Porous materials such as rocks, soils, and peats are typically complex mixtures built up of more than one component, with intrinsic permeabilities that depend on factors such as pore shape and surface area, tortuosity, and connectivity. In such media, the macroscopic permeability is an integrated combination of the permeabilities of the individual components. In this study, we numerically simulated fluid flow in binary mixtures of low- and high-permeability components constructed of spheres and ellipsoids using the lattice-Boltzmann (LB) method to model permeability in porous media. We then applied the effective-medium approximation (EMA) to predict permeability in the simulated binary mixtures. Our results indicate a very good match between predicted permeabilities by EMA and those simulated by LB in simple and body-centered cubic packs as long as the permeability of the high-permeability component K (sub h) is not substantially different than that of the low-permeability component K (sub l) . The upper limit of K (sub h) /K (sub l) for which the EMA approach results in very accurate permeability predictions depends on several factors, such as packing arrangement, grain shape, and porosity. Including all data, we found the EMA permeability predictions still within a factor of two of the LB simulations. JF - Vadose Zone Journal AU - Ghanbarian, Behzad AU - Daigle, Hugh AU - Faybishenko, Boris AU - Hubbard, Susan AU - Brodie, Eoin AU - Nico, Peter AU - Molz, Fred AU - Hunt, Allen G AU - Pachepsky, Yakov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 10 PB - Soil Science Society of America, Madison, WI VL - 15 IS - 2 SN - 1539-1663, 1539-1663 KW - soils KW - numerical models KW - complexity KW - unsaturated zone KW - porous materials KW - equations KW - simulation KW - porosity KW - two-component system KW - theoretical studies KW - sensitivity analysis KW - lattice Boltzmann method KW - packing KW - permeability KW - effective-medium approximation KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Permeability+in+two-component+porous+media%3B+effective-medium+approximation+compared+with+lattice-Boltzmann+simulations&rft.au=Ghanbarian%2C+Behzad%3BDaigle%2C+Hugh%3BFaybishenko%2C+Boris%3BHubbard%2C+Susan%3BBrodie%2C+Eoin%3BNico%2C+Peter%3BMolz%2C+Fred%3BHunt%2C+Allen+G%3BPachepsky%2C+Yakov&rft.aulast=Ghanbarian&rft.aufirst=Behzad&rft.date=2016-02-01&rft.volume=15&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=15391663&rft_id=info:doi/10.2136%2Fvzj2015.05.0071 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 71 N1 - PubXState - WI N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-05-19 N1 - SubjectsTermNotLitGenreText - complexity; effective-medium approximation; equations; lattice Boltzmann method; numerical models; packing; permeability; porosity; porous materials; sensitivity analysis; simulation; soils; theoretical studies; two-component system; unsaturated zone DO - http://dx.doi.org/10.2136/vzj2015.05.0071 ER - TY - JOUR T1 - Quantitative framework for preferential flow initiation and partitioning AN - 1773799030; 2016-025858 AB - A model for preferential flow in macropores is based on the short-range spatial distribution of soil matrix infiltrability. It uses elementary areas at two different scales. One is the traditional representative elementary area (REA), which includes a sufficient heterogeneity to typify larger areas, as for measuring field-scale infiltrability. The other, called an elementary matrix area (EMA), is smaller, but large enough to represent the local infiltrability of soil matrix material, between macropores. When water is applied to the land surface, each EMA absorbs water up to the rate of its matrix infiltrability. Excess water flows into a macropore, becoming preferential flow. The land surface then can be represented by a mesoscale (EMA-scale) distribution of matrix infiltrabilities. Total preferential flow at a given depth is the sum of contributions from all EMAs. Applying the model, one case study with multi-year field measurements of both preferential and diffuse fluxes at a specific depth was used to obtain parameter values by inverse calculation. The results quantify the preferential-diffuse partition of flow from individual storms that differed in rainfall amount, intensity, antecedent soil water, and other factors. Another case study provided measured values of matrix infiltrability to estimate parameter values for comparison and illustrative predictions. These examples give a self-consistent picture from the combination of parameter values, directions of sensitivities, and magnitudes of differences caused by different variables. One major practical use of this model is to calculate the dependence of preferential flow on climate-related factors, such as varying soil wetness and rainfall intensity. JF - Vadose Zone Journal AU - Nimmo, John R AU - Faybishenko, Boris AU - Hubbard, Susan AU - Brodie, Eoin AU - Nico, Peter AU - Molz, Fred AU - Hunt, Allen G AU - Pachepsky, Yakov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 12 PB - Soil Science Society of America, Madison, WI VL - 15 IS - 2 SN - 1539-1663, 1539-1663 KW - Far East KW - complexity KW - intensity KW - unsaturated zone KW - preferential flow KW - partitioning KW - quantitative analysis KW - Ibaraki Japan KW - hydrodynamics KW - storms KW - Asia KW - water KW - soils KW - connectivity KW - surface tension KW - capillarity KW - equations KW - porosity KW - depth KW - size KW - case studies KW - heterogeneous materials KW - viscosity KW - Tsukuba Japan KW - infiltration KW - Honshu KW - Japan KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799030?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Quantitative+framework+for+preferential+flow+initiation+and+partitioning&rft.au=Nimmo%2C+John+R%3BFaybishenko%2C+Boris%3BHubbard%2C+Susan%3BBrodie%2C+Eoin%3BNico%2C+Peter%3BMolz%2C+Fred%3BHunt%2C+Allen+G%3BPachepsky%2C+Yakov&rft.aulast=Nimmo&rft.aufirst=John&rft.date=2016-02-01&rft.volume=15&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=15391663&rft_id=info:doi/10.2136%2Fvzj2015.05.0079 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 67 N1 - PubXState - WI N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - Asia; capillarity; case studies; complexity; connectivity; depth; equations; Far East; heterogeneous materials; Honshu; hydrodynamics; Ibaraki Japan; infiltration; intensity; Japan; partitioning; porosity; preferential flow; quantitative analysis; size; soils; storms; surface tension; Tsukuba Japan; unsaturated zone; viscosity; water DO - http://dx.doi.org/10.2136/vzj2015.05.0079 ER - TY - JOUR T1 - Benchmarking the inelastic neutron scattering soil carbon method AN - 1773799014; 2016-025864 AB - The herein described inelastic neutron scattering (INS) method of measuring soil carbon was based on a new procedure for extracting the net carbon signal (NCS) from the measured gamma spectra and determination of the average carbon weight percent in the upper approximately 8-cm soil layer (AvgCw%8). The NCS extraction utilized the net-INS spectrum, which was the difference between the INS and thermal neutron capture (TNC) spectra and the net-INS system background spectrum. The proportionality between NCS and AvgCw%8 for any shape of soil carbon depth distribution was demonstrated theoretically. The theoretical model for NCS calculations accounted for carbon depth distribution and neutron and gamma ray propagation laws in our analysis; previous model results were verified by comparison with a Monte Carlo simulation using Geant4. The experimental results confirmed the identified proportionality. The mobile INS system was calibrated using pits filled with synthetic soil; this calibration was used for AvgCw%8 determinations in INS field measurements. The AvgCw%8 was also determined by the dry combustion method. Benchmarking the soil carbon determination by INS demonstrated results that coincided with dry combustion technique (DCT) results (within experimental error limits). Given the agreement between these methods, the described INS measurement system can be recommended as a reliable alternative means for measuring soil carbon. JF - Vadose Zone Journal AU - Yakubova, Galina AU - Kavetskiy, Aleksandr AU - Prior, Stephen A AU - Torbert, H Allen AU - Faybishenko, Boris AU - Hubbard, Susan AU - Brodie, Eoin AU - Nico, Peter AU - Molz, Fred AU - Hunt, Allen G AU - Pachepsky, Yakov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 11 PB - Soil Science Society of America, Madison, WI VL - 15 IS - 2 SN - 1539-1663, 1539-1663 KW - United States KW - irradiation KW - Ultisols KW - characterization KW - unsaturated zone KW - Appalachians KW - techniques KW - calibration KW - simulation KW - Alabama KW - Camp Hill Alabama KW - theoretical studies KW - gamma rays KW - neutron scattering KW - carbon KW - Shorter Alabama KW - benchmarking KW - spectra KW - geochemistry KW - soils KW - North America KW - experimental studies KW - Macon County Alabama KW - Tallapoosa County Alabama KW - Monte Carlo analysis KW - statistical analysis KW - thermal neutron capture spectra KW - measurement KW - inelastic neutron scattering KW - Piedmont KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799014?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Benchmarking+the+inelastic+neutron+scattering+soil+carbon+method&rft.au=Yakubova%2C+Galina%3BKavetskiy%2C+Aleksandr%3BPrior%2C+Stephen+A%3BTorbert%2C+H+Allen%3BFaybishenko%2C+Boris%3BHubbard%2C+Susan%3BBrodie%2C+Eoin%3BNico%2C+Peter%3BMolz%2C+Fred%3BHunt%2C+Allen+G%3BPachepsky%2C+Yakov&rft.aulast=Yakubova&rft.aufirst=Galina&rft.date=2016-02-01&rft.volume=15&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=15391663&rft_id=info:doi/10.2136%2Fvzj2015.04.0056 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 21 N1 - PubXState - WI N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - Alabama; Appalachians; benchmarking; calibration; Camp Hill Alabama; carbon; characterization; experimental studies; gamma rays; geochemistry; inelastic neutron scattering; irradiation; Macon County Alabama; measurement; Monte Carlo analysis; neutron scattering; North America; Piedmont; Shorter Alabama; simulation; soils; spectra; statistical analysis; Tallapoosa County Alabama; techniques; theoretical studies; thermal neutron capture spectra; Ultisols; United States; unsaturated zone DO - http://dx.doi.org/10.2136/vzj2015.04.0056 ER - TY - JOUR T1 - ABCA1 agonist peptides for the treatment of disease. AN - 1760861390; 26655293 AB - PURPOSE OF REVIEWThe review summarizes information pertaining to the preclinical development of new apolipoprotein (apo) E mimetic peptides that stimulate cellular cholesterol efflux.RECENT FINDINGSSmall α-helical peptides based on the C-terminal domain of apoE have been developed for therapeutic applications. These peptides stimulate cellular cholesterol efflux via the ATP-binding cassette transporter A1 (ABCA1) with high potency, like native apolipoproteins on a molar basis. This potent activity has been related to the unique ability of these peptides to maintain α-helix structure upon dilution. Recent structure-activity studies improving the safety features of these mimetic peptides have greatly improved their potential for clinical use. These studies have identified structural features of the class A α-helix motif that induce muscle toxicity and hypertriglyceridemia, which may have implications for the design of other HDL mimetic peptides.SUMMARYABCA1 is an integral membrane protein that plays a central role in biology. Its principal function is to mediate the efflux of cholesterol and phospholipid from cells to extracellular apo, preventing a build-up of excess cholesterol in membranes. This process generates HDL particles that perform a variety of functions to protect against disease. A number of these functions can be viewed as directly or indirectly supporting ABCA1 activity, thus constituting a positive feedback system to optimize cellular lipid efflux responses and disease prevention. Consequently, therapeutic approaches that mimic the activities of apos may prove highly effective to combat disease. One such approach involves the use of peptides. The broad biological relevance of ABCA1 suggests these apo mimetic peptides may be useful for the treatment of a number of diseases, such as atherosclerosis, diabetes, and Alzheimer's disease. JF - Current opinion in lipidology AU - Bielicki, John K AD - Donner Laboratory, Life Sciences Division, Lawrence Berkeley National Laboratory, University of California at Berkeley, Berkeley, California, USA. Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 40 EP - 46 VL - 27 IS - 1 KW - ATP Binding Cassette Transporter 1 KW - 0 KW - Phospholipids KW - Cholesterol KW - 97C5T2UQ7J KW - Index Medicus KW - Cholesterol -- metabolism KW - Humans KW - Phospholipids -- metabolism KW - ATP Binding Cassette Transporter 1 -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1760861390?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+opinion+in+lipidology&rft.atitle=ABCA1+agonist+peptides+for+the+treatment+of+disease.&rft.au=Bielicki%2C+John+K&rft.aulast=Bielicki&rft.aufirst=John&rft.date=2016-02-01&rft.volume=27&rft.issue=1&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=Current+opinion+in+lipidology&rft.issn=1473-6535&rft_id=info:doi/10.1097%2FMOL.0000000000000258 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-09-30 N1 - Date created - 2016-01-07 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Nat Rev Endocrinol. 2012 Apr;8(4):237-45 [22271188] Cell Cycle. 2012 Feb 15;11(4):706-14 [22306989] Lipids Health Dis. 2012;11:169 [23227865] J Lipid Res. 2013 May;54(5):1275-82 [23471027] Circ Res. 2015 Mar 27;116(7):1101-3 [25814677] J Cell Biol. 2015 Apr 13;209(1):13-22 [25869663] Lancet Diabetes Endocrinol. 2015 Jul;3(7):507-13 [26025389] Circ Res. 2015 Jul 17;117(3):266-78 [26002865] Curr Opin Cardiol. 2015 Sep;30(5):536-42 [26192490] Alzheimers Dement. 2015 Dec;11(12):1430-8 [26079414] J Pharmacol Exp Ther. 2015 Feb;352(2):227-35 [25395590] Circ Res. 2013 May 10;112(10):1345-54 [23501697] Circ Res. 2013 May 24;112(11):1456-65 [23572498] Biochem Biophys Res Commun. 2013 Nov 8;441(1):71-6 [24129191] Mech Ageing Dev. 2013 Oct;134(10):506-15 [24012632] Circulation. 2013 Nov 26;128(22):2364-71 [24170386] Circ Res. 2014 Jan 3;114(1):157-70 [24385509] Curr Opin Endocrinol Diabetes Obes. 2014 Apr;21(2):129-33 [24569554] J Lipid Res. 2014 Mar;55(3):421-30 [24347528] J Lipid Res. 2014 Mar;55(3):516-23 [24443560] J Neurosci. 2014 May 21;34(21):7293-301 [24849361] J Lipid Res. 2014 Oct;55(10):2007-21 [25157031] Diabetes. 2014 Dec;63(12):4076-82 [25028523] Neurobiol Dis. 2014 Dec;72 Pt A:54-60 [24746857] Handb Exp Pharmacol. 2015;224:631-48 [25523005] J Biochem. 2000 Feb;127(2):297-305 [10731697] J Mol Biol. 2003 Nov 28;334(3):527-39 [14623192] J Biol Chem. 2004 Sep 24;279(39):40987-93 [15269217] J Biol Chem. 1992 Feb 5;267(4):2664-70 [1733963] J Biol Chem. 1994 Mar 11;269(10):7185-91 [8125930] Proc Natl Acad Sci U S A. 1997 Nov 11;94(23):12291-6 [9356442] Arterioscler Thromb Vasc Biol. 2006 Mar;26(3):534-40 [16357317] J Lipid Res. 2006 Nov;47(11):2433-43 [16902247] Biochemistry. 2007 Mar 13;46(10):2583-93 [17305370] Nat Med. 2007 Mar;13(3):340-7 [17322896] J Lipid Res. 2007 Sep;48(9):1915-23 [17570869] J Lipid Res. 2008 Aug;49(8):1658-69 [18426778] J Lipid Res. 2010 Jun;51(6):1496-503 [20075422] Pharmacol Ther. 2011 Apr;130(1):83-91 [21172387] Biochemistry. 2011 May 17;50(19):4068-76 [21476522] J Neurosci. 2012 Sep 19;32(38):13125-36 [22993429] N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1097/MOL.0000000000000258 ER - TY - JOUR T1 - Experimental and simulated energy performance of a personalized ventilation system with individual airflow control in a hot and humid climate AN - 1758356574; PQ0002440149 AB - This paper presents the energy performance of a personalized ventilation (PV) system with individual control of airflow rate in a hot and humid climate. A set of experiments with 46 tropically acclimatized subjects were conducted with ambient temperatures of 23 and 26 degree C and PV air temperatures of 20, 23 and 26 degree C. It has been found that as the ambient temperature is increased, subjects prefer higher PV airflow rates. While the higher ambient temperature reduces the cooling load, this is partly offset by the increased ventilation load. Therefore, it is not straightforward to quantify the energy savings accurately. In this work, an EnergyPlus simulation model was developed and validated by measurement data. The model was normalized to take into account the effects of the variations of outdoor conditions and the number of occupants. It was then applied to evaluate the energy performance of the PV system. The results show that when the PV air temperature is kept at 20 degree C, the energy consumption at an ambient temperature of 23 degree C is 10.8% higher than that at 26 degree C. The best results are obtained when the PV air temperature is 20 degree C and the ambient temperature is 26 degree C. It is therefore concluded that increasing the ambient temperature has good potential to reduce energy consumption, whereas increasing the PV temperature does not bring appreciable benefits. JF - Building and Environment AU - Chen, Yixing AU - Raphael, Benny AU - Sekhar, S C AD - Building Technology and Urban Systems Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 283 EP - 292 PB - Elsevier B.V., P.O. Box 800 Kidlington Oxford OX5 1DX United Kingdom VL - 96 SN - 0360-1323, 0360-1323 KW - Meteorological & Geoastrophysical Abstracts; Environment Abstracts; Sustainability Science Abstracts KW - Personalized ventilation KW - Energy performance KW - Individual control KW - Hot and humid climate KW - Ventilation KW - Airflow KW - Climate KW - Temperature KW - Energy conservation KW - Simulation KW - Energy consumption KW - Air temperature KW - Flow rates KW - Numerical simulations KW - Energy KW - Cooling systems KW - Air flow KW - M3 1010:Issues in Sustainable Development KW - M2 551.524:Air Temperature (551.524) KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1758356574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Building+and+Environment&rft.atitle=Experimental+and+simulated+energy+performance+of+a+personalized+ventilation+system+with+individual+airflow+control+in+a+hot+and+humid+climate&rft.au=Chen%2C+Yixing%3BRaphael%2C+Benny%3BSekhar%2C+S+C&rft.aulast=Chen&rft.aufirst=Yixing&rft.date=2016-02-01&rft.volume=96&rft.issue=&rft.spage=283&rft.isbn=&rft.btitle=&rft.title=Building+and+Environment&rft.issn=03601323&rft_id=info:doi/10.1016%2Fj.buildenv.2015.11.036 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-01-01 N1 - Last updated - 2016-02-29 N1 - SubjectsTermNotLitGenreText - Numerical simulations; Airflow; Ventilation; Energy; Climate; Energy conservation; Temperature; Simulation; Energy consumption; Cooling systems; Flow rates; Air temperature; Air flow DO - http://dx.doi.org/10.1016/j.buildenv.2015.11.036 ER - TY - JOUR T1 - Direct growth of single-crystalline III-V semiconductors on amorphous substrates. AN - 1761078316; 26813257 AB - The III-V compound semiconductors exhibit superb electronic and optoelectronic properties. Traditionally, closely lattice-matched epitaxial substrates have been required for the growth of high-quality single-crystal III-V thin films and patterned microstructures. To remove this materials constraint, here we introduce a growth mode that enables direct writing of single-crystalline III-V's on amorphous substrates, thus further expanding their utility for various applications. The process utilizes templated liquid-phase crystal growth that results in user-tunable, patterned micro and nanostructures of single-crystalline III-V's of up to tens of micrometres in lateral dimensions. InP is chosen as a model material system owing to its technological importance. The patterned InP single crystals are configured as high-performance transistors and photodetectors directly on amorphous SiO2 growth substrates, with performance matching state-of-the-art epitaxially grown devices. The work presents an important advance towards universal integration of III-V's on application-specific substrates by direct growth. JF - Nature communications AU - Chen, Kevin AU - Kapadia, Rehan AU - Harker, Audrey AU - Desai, Sujay AU - Seuk Kang, Jeong AU - Chuang, Steven AU - Tosun, Mahmut AU - Sutter-Fella, Carolin M AU - Tsang, Michael AU - Zeng, Yuping AU - Kiriya, Daisuke AU - Hazra, Jubin AU - Madhvapathy, Surabhi Rao AU - Hettick, Mark AU - Chen, Yu-Ze AU - Mastandrea, James AU - Amani, Matin AU - Cabrini, Stefano AU - Chueh, Yu-Lun AU - Ager Iii, Joel W AU - Chrzan, Daryl C AU - Javey, Ali AD - Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, California 94720, USA. ; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. ; Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089, USA. ; Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan. ; Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, 94720 California, USA. Y1 - 2016/01/27/ PY - 2016 DA - 2016 Jan 27 SP - 10502 VL - 7 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1761078316?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+communications&rft.atitle=Direct+growth+of+single-crystalline+III-V+semiconductors+on+amorphous+substrates.&rft.au=Chen%2C+Kevin%3BKapadia%2C+Rehan%3BHarker%2C+Audrey%3BDesai%2C+Sujay%3BSeuk+Kang%2C+Jeong%3BChuang%2C+Steven%3BTosun%2C+Mahmut%3BSutter-Fella%2C+Carolin+M%3BTsang%2C+Michael%3BZeng%2C+Yuping%3BKiriya%2C+Daisuke%3BHazra%2C+Jubin%3BMadhvapathy%2C+Surabhi+Rao%3BHettick%2C+Mark%3BChen%2C+Yu-Ze%3BMastandrea%2C+James%3BAmani%2C+Matin%3BCabrini%2C+Stefano%3BChueh%2C+Yu-Lun%3BAger+Iii%2C+Joel+W%3BChrzan%2C+Daryl+C%3BJavey%2C+Ali&rft.aulast=Chen&rft.aufirst=Kevin&rft.date=2016-01-27&rft.volume=7&rft.issue=&rft.spage=10502&rft.isbn=&rft.btitle=&rft.title=Nature+communications&rft.issn=2041-1723&rft_id=info:doi/10.1038%2Fncomms10502 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-05-27 N1 - Date created - 2016-01-27 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Nanotechnology. 2013 May 31;24(21):214006 [23619012] Nano Lett. 2011 Jun 8;11(6):2286-90 [21604708] N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1038/ncomms10502 ER - TY - JOUR T1 - Monitoring Ultrafast Chemical Dynamics by Time-Domain X-ray Photo- and Auger-Electron Spectroscopy. AN - 1760884679; 26641490 AB - The directed flow of charge and energy is at the heart of all chemical processes. Extraordinary efforts are underway to monitor and understand the concerted motion of electrons and nuclei with ever increasing spatial and temporal sensitivity. The element specificity, chemical sensitivity, and temporal resolution of ultrafast X-ray spectroscopy techniques hold great promise to provide new insight into the fundamental interactions underlying chemical dynamics in systems ranging from isolated molecules to application-like devices. Here, we focus on the potential of ultrafast X-ray spectroscopy techniques based on the detection of photo- and Auger electrons to provide new fundamental insight into photochemical processes of systems with various degrees of complexity. Isolated nucleobases provide an excellent testing ground for our most fundamental understanding of intramolecular coupling between electrons and nuclei beyond the traditionally applied Born-Oppenheimer approximation. Ultrafast electronic relaxation dynamics enabled by the breakdown of this approximation is the major component of the nucleobase photoprotection mechanisms. Transient X-ray induced Auger electron spectroscopy on photoexcited thymine molecules provides atomic-site specific details of the extremely efficient coupling that converts potentially bond changing ultraviolet photon energy into benign heat. In particular, the time-dependent spectral shift of a specific Auger band is sensitive to the length of a single bond within the molecule. The X-ray induced Auger transients show evidence for an electronic transition out of the initially excited state within only ∼200 fs in contrast to theoretically predicted picosecond population trapping behind a reaction barrier. Photoinduced charge transfer dynamics between transition metal complexes and semiconductor nanostructures are of central importance for many emerging energy and climate relevant technologies. Numerous demonstrations of photovoltaic and photocatalytic activity have been performed based on the combination of strong light absorption in dye molecules with charge separation and transport in adjacent semiconductor nanostructures. However, a fundamental understanding of the enabling and limiting dynamics on critical atomic length- and time scales is often still lacking. Femtosecond time-resolved X-ray photoelectron spectroscopy is employed to gain a better understanding of a short-lived intermediate that may be linked to the unexpectedly limited performance of ZnO based dye-sensitized solar cells by delaying the generation of free charge carriers. The transient spectra strongly suggest that photoexcited dye molecules attached to ZnO nanocrystals inject their charges into the substrate within less than 1 ps but the electrons are then temporarily trapped at the surface of the semiconductor in direct vicinity of the injecting molecules. The experiments are extended to monitor the electronic response of the semiconductor substrate to the collective injection from a monolayer of dye molecules and the subsequent electron-ion recombination dynamics. The results indicate some qualitative similarities but quantitative differences between the recombination dynamics at molecule-semiconductor interfaces and previously studied bulk-surface electron-hole recombination dynamics in photoexcited semiconductors. JF - Accounts of chemical research AU - Gessner, Oliver AU - Gühr, Markus AD - Chemical Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States. ; PULSE Institute, SLAC National Accelerator Laboratory , Menlo Park, California 94025, United States. Y1 - 2016/01/19/ PY - 2016 DA - 2016 Jan 19 SP - 138 EP - 145 VL - 49 IS - 1 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1760884679?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Accounts+of+chemical+research&rft.atitle=Monitoring+Ultrafast+Chemical+Dynamics+by+Time-Domain+X-ray+Photo-+and+Auger-Electron+Spectroscopy.&rft.au=Gessner%2C+Oliver%3BG%C3%BChr%2C+Markus&rft.aulast=Gessner&rft.aufirst=Oliver&rft.date=2016-01-19&rft.volume=49&rft.issue=1&rft.spage=138&rft.isbn=&rft.btitle=&rft.title=Accounts+of+chemical+research&rft.issn=1520-4898&rft_id=info:doi/10.1021%2Facs.accounts.5b00361 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-05-13 N1 - Date created - 2016-01-19 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1021/acs.accounts.5b00361 ER - TY - JOUR T1 - Optimal metal domain size for photocatalysis with hybrid semiconductor-metal nanorods. AN - 1760870779; 26783194 AB - Semiconductor-metal hybrid nanostructures offer a highly controllable platform for light-induced charge separation, with direct relevance for their implementation in photocatalysis. Advances in the synthesis allow for control over the size, shape and morphology, providing tunability of the optical and electronic properties. A critical determining factor of the photocatalytic cycle is the metal domain characteristics and in particular its size, a subject that lacks deep understanding. Here, using a well-defined model system of cadmium sulfide-gold nanorods, we address the effect of the gold tip size on the photocatalytic function, including the charge transfer dynamics and hydrogen production efficiency. A combination of transient absorption, hydrogen evolution kinetics and theoretical modelling reveal a non-monotonic behaviour with size of the gold tip, leading to an optimal metal domain size for the most efficient photocatalysis. We show that this results from the size-dependent interplay of the metal domain charging, the relative band-alignments, and the resulting kinetics. JF - Nature communications AU - Ben-Shahar, Yuval AU - Scotognella, Francesco AU - Kriegel, Ilka AU - Moretti, Luca AU - Cerullo, Giulio AU - Rabani, Eran AU - Banin, Uri AD - The Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond Safra Campus Givat-Ram, Jerusalem 91904, Israel. ; Dipartimento di Fisica, IFN-CNR, Politecnico di Milano, 20133 Milan, Italy. ; Department of Chemistry, University of California and Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460, USA. Y1 - 2016/01/19/ PY - 2016 DA - 2016 Jan 19 SP - 10413 VL - 7 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1760870779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+communications&rft.atitle=Optimal+metal+domain+size+for+photocatalysis+with+hybrid+semiconductor-metal+nanorods.&rft.au=Ben-Shahar%2C+Yuval%3BScotognella%2C+Francesco%3BKriegel%2C+Ilka%3BMoretti%2C+Luca%3BCerullo%2C+Giulio%3BRabani%2C+Eran%3BBanin%2C+Uri&rft.aulast=Ben-Shahar&rft.aufirst=Yuval&rft.date=2016-01-19&rft.volume=7&rft.issue=&rft.spage=10413&rft.isbn=&rft.btitle=&rft.title=Nature+communications&rft.issn=2041-1723&rft_id=info:doi/10.1038%2Fncomms10413 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-05-13 N1 - Date created - 2016-01-19 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Nano Lett. 2007 Oct;7(10):2942-50 [17845067] Chemphyschem. 2009 May 11;10(7):1028-31 [19347917] Proc Natl Acad Sci U S A. 2011 Jan 4;108(1):29-34 [21149685] Nat Chem. 2011 Jun;3(6):489-92 [21602866] ACS Nano. 2011 Jun 28;5(6):4712-9 [21648441] ACS Nano. 2012 Sep 25;6(9):8156-65 [22881284] Science. 2012 Dec 7;338(6112):1321-4 [23138979] N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1038/ncomms10413 ER - TY - JOUR T1 - Implicit-Solvent Coarse-Grained Simulation with a Fluctuating Interface Reveals a Molecular Mechanism for Peptoid Monolayer Buckling. AN - 1760889818; 26647143 AB - Peptoid polymers form extended two-dimensional nanostructures via an interface-mediated assembly process: the amphiphilic peptoids first adsorb to an air-water interface as a monolayer, then buckle and collapse into free-floating bilayer nanosheets when the interface is compressed. Here, we investigate the molecular mechanism of monolayer buckling by developing a method for incorporating interface fluctuations into an implicit-solvent coarse-grained model. Representing the interface with a triangular mesh controlled by surface tension and surfactant adsorption, we predict the direction of buckling for peptoids with a segregated arrangement of charged side chains and predict that peptoids with with an alternating charge pattern should buckle less easily than peptoids with a segregated charge pattern. JF - Journal of chemical theory and computation AU - Haxton, Thomas K AU - Zuckermann, Ronald N AU - Whitelam, Stephen AD - Molecular Foundry, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States. Y1 - 2016/01/12/ PY - 2016 DA - 2016 Jan 12 SP - 345 EP - 352 VL - 12 IS - 1 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1760889818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+chemical+theory+and+computation&rft.atitle=Implicit-Solvent+Coarse-Grained+Simulation+with+a+Fluctuating+Interface+Reveals+a+Molecular+Mechanism+for+Peptoid+Monolayer+Buckling.&rft.au=Haxton%2C+Thomas+K%3BZuckermann%2C+Ronald+N%3BWhitelam%2C+Stephen&rft.aulast=Haxton&rft.aufirst=Thomas&rft.date=2016-01-12&rft.volume=12&rft.issue=1&rft.spage=345&rft.isbn=&rft.btitle=&rft.title=Journal+of+chemical+theory+and+computation&rft.issn=1549-9626&rft_id=info:doi/10.1021%2Facs.jctc.5b00910 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-05-19 N1 - Date created - 2016-01-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1021/acs.jctc.5b00910 ER - TY - JOUR T1 - First results of aseismic fault slip and leakage preceding an earthquake induced during an in situ fault reactivation experiment in shales (Mont Terri FS experiment, Switzerland) AN - 1873350758; 2017-013779 AB - Understanding fault reactivation is critical in geologic wastewater disposal, hydraulic fracturing, and CO (sub 2) sequestration because it may result in enhanced fault permeability, potentially inducing fluid leakage from the injection zone through overlying caprock and eventually triggering shallow seismic events. Here we show preliminary results from a controlled field stimulation experiment (FS experiment dedicated to the hydro-mechanical characterization of in-situ clay fault slip) conducted in a N140 degrees -dipping 50-to-60 degrees SE fault in a clay formation in the Mont Terri Underground Research Laboratory (Switzerland). We measured fault slip and seismicity induced by fluid-injection in a natural fault at a depth of 300 m. We observe multiple dilatant slip events ( nearly equal 30 micrometer/s) associated with factor-of-1000 increase of permeability, and a magnitude approximately -2.5 main seismic event associated with a swarm of very small magnitude ones. Seismicity occurs after aseismic slip has been initiated within the fluid-pressurized zone of the fault. Two monitoring points set across the fault allow estimating that, at the onset of the seismicity, the radius of the fault patch invaded by pressurized fluid is approximately 5-to-7 m which is larger than the approximate location of the seismic events. The seismic source radius which was estimated to approximately 1.2m indicates that only a fraction of the activated fault patch experienced unstable slip. Significantly different slip/dilation signals at the two monitoring points tend to show that patches of different fault hydromechanical properties could be controlling the slip stability. JF - Abstracts with Programs - Geological Society of America AU - Guglielmi, Yves AU - de Barros, Louis AU - Nussbaum, Christophe AU - Birkholzer, Jens T AU - Cappa, Frederic AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 95 EP - 12 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873350758?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=First+results+of+aseismic+fault+slip+and+leakage+preceding+an+earthquake+induced+during+an+in+situ+fault+reactivation+experiment+in+shales+%28Mont+Terri+FS+experiment%2C+Switzerland%29&rft.au=Guglielmi%2C+Yves%3Bde+Barros%2C+Louis%3BNussbaum%2C+Christophe%3BBirkholzer%2C+Jens+T%3BCappa%2C+Frederic%3BAnonymous&rft.aulast=Guglielmi&rft.aufirst=Yves&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Linking annual flux of floodplain sediment and organic carbon with discharge along a meandering mountain river AN - 1873350313; 2017-013639 AB - Linking floodplain response to variability in annual discharge provides insight into potential shifts in floodplain dynamics under increasing demand for freshwater and a changing climate. We use 13 historical aerial images spanning 45 years, a 0.5-m resolution aerial LIDAR dataset from 2015, field measurements of soil depth, soil samples, sediment aggradation tiles on the floodplain, and reconstructed hydrographs of the East River near Crested Butte, CO, USA to estimate net sediment and organic carbon (OC) flux in relation to discharge. Differences in river channel location are used to quantify bank erosion and lateral floodplain accretion rates within the period between 2 images. The area of deposition and vertical aggradation rate will be used to estimate the volume of accumulated sediment on the floodplain for each time interval. Net difference between volumes of eroded and deposited sediment will be used to estimate the flux of floodplain sediment within the period between aerial images. Preliminary results for the entire 13-km study reach indicate 22685 m (super 2) of lateral accretion and 25318 m (super 2) of erosion resulting in net erosion of 2633 m (super 2) between the late summer of 2013 and 2015. Using an accretion rate of 1 cm yr (super -1) , estimated from contemporary depths of fine sediment where gravel pointbars were present in 1990, and a mean measured depth of fine sediment of 57 cm along a subreach nearly equal 4 km long, we estimate that 455 m (super 3) of deposition and 14378 m (super 3) of erosion resulted in a net efflux of 13923 m (super 3) of sediment across the entire floodplain. Using a measured mean soil bulk density of nearly equal 0.86 g/cm (super 3) and soil organic carbon content of 3.5% and assuming these values represent sediment both imported and exported to the floodplain, this equates to a net efflux of carbon of 419 Mg and 1.44 Mg C ha (super -1) y (super -1) . Flows during 2014 and 2015 were relatively high compared to bankfull discharge with approximately 5- and 3-year recurrence intervals, respectively, but analysis was completed only point bars and did not account for vertical accretion across the entire floodplain. Furthermore, meander cutoffs and infilling of oxbow lakes, likely store a significant amount of organic carbon. JF - Abstracts with Programs - Geological Society of America AU - Sutfin, Nicholas A AU - Rowland, Joel C AU - Stauffer, Sophie J AU - Fratkin, Mulu AU - Williams, Kenneth H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 36 EP - 3 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873350313?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Linking+annual+flux+of+floodplain+sediment+and+organic+carbon+with+discharge+along+a+meandering+mountain+river&rft.au=Sutfin%2C+Nicholas+A%3BRowland%2C+Joel+C%3BStauffer%2C+Sophie+J%3BFratkin%2C+Mulu%3BWilliams%2C+Kenneth+H%3BAnonymous&rft.aulast=Sutfin&rft.aufirst=Nicholas&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - The importance of microbial mats in the preservation of soft-bodied organisms in Ediacaran coarse-grained siliciclastic environments AN - 1873348568; 2017-013965 AB - Soft bodied organisms were frequently preserved on the bedding soles of coarse-grained siliciclastic sediments of the terminal Proterozoic. Microbial mats were more widespread during this time, when grazing and bioturbating organisms were absent, and were hypothesized to have contributed to the preservation of soft tissues. Cyanobacterial mats themselves can be preserved in sand and silt due to the biological precipitation and trapping of clay minerals. Here, we experimentally test whether microbially mediated processes can facilitate the preservation of soft tissues. To do this, we buried scallop and shrimp tissues within cyanobacterial mats growing on siliciclastic sand in the presence of 0.4 mM dissolved silica. Control experiments replicated these conditions, but without microbial mats. Energy Dispersive X-Ray Spectroscopy (SEM-EDS) revealed the presence of calcium on the surfaces of soft tissues in our experiments with microbial mats (after 3 months of incubation) but after 6 months, iron was the predominant element. X-Ray Absorption Near Edge Structure (XANES) revealed an abundance of iron (III) oxyhydroxides after 6 months of incubation. Soft tissues in the absence of microbial mats were not preserved, and fell apart before analysis. These findings suggest that microbial mats may have been critical to the development of mineral molds around soft tissues, facilitating their preservation in Ediacaran sandstones. Further work should assess the specific mechanisms of microbe-mineral interactions associated with the preservation of soft-bodies organisms. JF - Abstracts with Programs - Geological Society of America AU - Newman, Sharon AU - Marcus, Matthew AU - Bosak, Tanja AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 184 EP - 9 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 10:Invertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873348568?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+importance+of+microbial+mats+in+the+preservation+of+soft-bodied+organisms+in+Ediacaran+coarse-grained+siliciclastic+environments&rft.au=Newman%2C+Sharon%3BMarcus%2C+Matthew%3BBosak%2C+Tanja%3BAnonymous&rft.aulast=Newman&rft.aufirst=Sharon&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Laboratory visualization and acoustic emission monitoring of hydraulic fracturing in a complex, fractured medium AN - 1873348535; 2017-013604 AB - Fracture propagation in rock can be affected strongly by open and healed (or filled) preexisting fractures, resulting in changes in the propagation paths and complex branching. The resulting network of hydraulically connected complex fractures is considered critical for efficient and economical production of oil and gas, and circulation of geothermal fluids. Evidence for the complex fracturing is mostly from microearthquake (MEQ) observations in the field and numerical simulations while direct observations in the laboratory are still scarce. In this presentation, we will show recently developed methodologies and the results from laboratory hydraulic fracturing visualization experiments. Optical visualization experiments are conducted in transparent glass cubes containing varying degrees of heterogeneity consisting of fractures and microcracks. These defects are either etched in the rock (glass) matrix using 3D laser engraving based upon specified fracture geometry and patterns, or produced by thermal quenching (and partial rehealing) which result in varying degrees of fracture density, strength, and connectivity (or permeability). Fluorescent dye is used to enhance the images of the thin fractures, assisted by illumination by laser and UV light. In anisotropic (and opaque) shale blocks, the samples are scanned via X-ray CT, assisted by contrast-enhancing fluid (liquid metal) to improve the visibility of thin hydraulic fractures. Using the transparent glass samples for optical visualization, we investigate the impact of fluid viscosity and injection rate on the geometry of the hydraulic fracture and fracture network produced by fluid injection, while the sample cubes are subjected to true-triaxial stresses. In the optical visualization experiments, propagation of the fractures and evolution of fracture networks can be observed through a mirror and a port hole installed in loading platens. Concurrently, we determine the locations of fracturing from acoustic emissions and correlate them to the optical images of the fractures. The experiments indicate that changes in the fluid injection rate (and viscosity) can modify the geometry of the hydraulic fractures, which may be a key to improved control of subsurface permeability. JF - Abstracts with Programs - Geological Society of America AU - Nakagawa, Seiji AU - Kneafsey, Timothy J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 33 EP - 7 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873348535?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Laboratory+visualization+and+acoustic+emission+monitoring+of+hydraulic+fracturing+in+a+complex%2C+fractured+medium&rft.au=Nakagawa%2C+Seiji%3BKneafsey%2C+Timothy+J%3BAnonymous&rft.aulast=Nakagawa&rft.aufirst=Seiji&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Relative carbon fluxes from soil, deep vadose zone and groundwater to atmosphere and river of a semi-arid floodplain in Colorado AN - 1873348522; 2017-015543 AB - Understanding of terrestrial carbon cycling relies primarily on studies of topsoils that are typically shallower than 0.3 m and seldom deeper than 1 m. Much less is known about carbon fluxes through deeper strata where about half of the Earth's terrestrial carbon inventory resides. This is especially true in semi-arid and arid regions, which represent about 40% of the Earth's land surface. Unique field instrumentation was installed within a semi-arid floodplain of the Colorado River to understand carbon inventories and carbon and water fluxes. Measurements were made over a 2 year period along a transect extending laterally for 250 m and vertically for 7 m through the unsaturated zone into the underlying aquifer. Year-round vadose zone pore-water sampling revealed the existence of a high dissolved organic carbon (DOC) influx from the rhizosphere infiltrating into the deeper vadose zone. The field and associated laboratory derived seasonal- and depth-resolved CO (sub 2) fluxes and respiration rates combined with vadose zone and groundwater flow rates led to the important discoveries that 1) about 30% of the CO (sub 2) emitted from the land surface is originating from depths below 1 m and above the water table, although the current global scale land models (CLM/ALM) show practically no CO (sub 2) emission from below 1 m depth. 2) The CO (sub 2) efflux to the atmosphere accounts for approximately 85% of the total floodplain carbon export, with only approximately 15% of the total carbon as DIC (the characteristics of the semi-arid climate) and <1% of total DOC export to the aquifer and river, despite being along the river. To our knowledge, these analyses of a novel dataset are the first to quantify the relative contributions to carbon exports from different subsurface compartments into the atmosphere and river at a semi-arid floodplain. While studies of carbon cycling in other semi-arid region floodplains are needed, a similar hierarchy for magnitudes of carbon exports is expected in other semi-arid flood plains because of efficient OC utilization in soils and the deep vadose zone, and relatively low flow rates and DOC concentrations in groundwater. JF - Abstracts with Programs - Geological Society of America AU - Wan, Jiamin AU - Tokunaga, Tetsu AU - Dong, Wenming AU - Williams, Kenneth AU - Hobson, Chad AU - Kim, Yongman AU - Conrad, Mark E AU - Bill, Markus AU - Long, Philip E AU - Hubbard, Susan S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 249 EP - 6 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873348522?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Relative+carbon+fluxes+from+soil%2C+deep+vadose+zone+and+groundwater+to+atmosphere+and+river+of+a+semi-arid+floodplain+in+Colorado&rft.au=Wan%2C+Jiamin%3BTokunaga%2C+Tetsu%3BDong%2C+Wenming%3BWilliams%2C+Kenneth%3BHobson%2C+Chad%3BKim%2C+Yongman%3BConrad%2C+Mark+E%3BBill%2C+Markus%3BLong%2C+Philip+E%3BHubbard%2C+Susan+S%3BAnonymous&rft.aulast=Wan&rft.aufirst=Jiamin&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Molecular controls over uranium biogeochemistry in the upper Colorado River basin; a regional perspective AN - 1873347761; 2017-013751 AB - Organic-rich anoxic sediments at DOE's Rifle, CO site contain relatively high concentrations of uranium. Based on sediment characteristics, we speculated that these 'naturally reduced zones' (NRZs) are common and accumulate uranium at similar contaminated sites across the upper Colorado River Basin (CRB). To test this hypothesis, we sampled NRZs at 4 additional sites along a 700 km north-south transect of the upper CRB: Grand Junction and Naturita, CO; Shiprock, NM; and Riverton, WY. This work confirmed our hypothesis and showed that NRZs are also important reservoirs for nutrients and biogeochemical critical elements (BCE), including C, N, S, and Fe. Sulfate-reducing conditions are required for uranium accumulation, suggesting at least a strong indirect control of sulfide on U(VI) reduction. Indeed, the nominal oxidation state of water-soluble soil organic carbon was found to be correlated to sediment sulfide concentration, suggesting that sulfide plays a major role in poising the redox conditions of NRZs regionally. To better understand molecular controls over uranium behavior in NRZs, we performed controlled microcosm experiments designed to mimic sulfate-reducing conditions in NRZs and to more clearly define the potential roles of organic functional groups as uranium binding sites. U(IV) was found to be dominantly associated with surfaces of particulate organic carbon and to exhibit local molecular structure consistent with sorbed complexes. An important implication of this finding is that U(IV) will be readily mobilized in the presence of complexing agents and oxidants. Such conditions are common in NRZ sediments, which experience large variations in saturation state and redox conditions throughout the annual winter (base flow)/summer (meltwater discharge) cycle within the upper CRB. In ensemble, these studies suggest new conceptual and process models for uranium and BCE biogeochemical behavior that are unprecedented in their regional scale, detail, and awareness of variable hydrologic conditions. By studying anoxic sediment systems from a regional perspective, we have gained important insights into the range and intensity of processes that are likely to be important at individual sites. JF - Abstracts with Programs - Geological Society of America AU - Bargar, John R AU - Bone, Sharon AU - Boye, Kristin AU - Cardarelli, Emily AU - Janot, Noemie AU - Noel, Vincent AU - Williams, Kenneth H AU - Francis, Chris AU - Fendorf, Scott AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 93 EP - 12 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873347761?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Molecular+controls+over+uranium+biogeochemistry+in+the+upper+Colorado+River+basin%3B+a+regional+perspective&rft.au=Bargar%2C+John+R%3BBone%2C+Sharon%3BBoye%2C+Kristin%3BCardarelli%2C+Emily%3BJanot%2C+Noemie%3BNoel%2C+Vincent%3BWilliams%2C+Kenneth+H%3BFrancis%2C+Chris%3BFendorf%2C+Scott%3BAnonymous&rft.aulast=Bargar&rft.aufirst=John&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Subsurface energy applications; cross-cutting research needs and the role of deep geoscience observatories AN - 1873347233; 2017-014026 AB - Subsurface energy resources currently provide or enable >80% of U.S. primary energy, and the trend of relying on the subsurface to meet U.S. energy needs is expected to increase. The subsurface is also a vast reservoir that can be used for the transient storage of energy and for the permanent disposal of energy waste streams (such as CO (sub 2) and nuclear waste). However, the complexity and difficulty involved in characterizing subsurface reservoirs currently hinder our ability to utilize the full potential of these systems. For example, we cannot accurately image, predict, or control subsurface fractures or flow with the confidence needed to effectively guide subsurface energy operations. Developing the comprehensive understanding and capabilities needed to gain mastery of Earth's complex subsurface requires a new cross-cutting R&D paradigm, as it is currently envisioned in the U.S. Department of Energy's SubTER (Subsurface Technology and Engineering Research, Development and Demonstration) technology team. This presentation first discusses selected cross-cutting challenges to be addressed by SubTER that, if achieved, could transform our utilization of the subsurface for both energy production and waste storage. The talk then moves on to the important role that geosciences field observatories can play in this context. First, controlled field experiments in geoscience observatories can be used to improve process understanding and apply methodologies developed. Second, geoscience observatories are useful for testing effects of heterogeneity and real-world conditions which can sometimes lead to unexpected effects and mechanisms not predicted by theory or laboratory work. Finally, geoscience observatories can be community builders that tie research and development to industry and stakeholders, through demonstrations and ultimately adoption. Several existing and planned examples of deep geoscience observatories are presented and discussed, addressing a range of R&D challenges in several subsurface energy applications such as geologic carbon sequestration, geothermal energy, hydrocarbon extraction, and nuclear waste isolation. JF - Abstracts with Programs - Geological Society of America AU - Birkholzer, Jens T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 213 EP - 1 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1873347233?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Subsurface+energy+applications%3B+cross-cutting+research+needs+and+the+role+of+deep+geoscience+observatories&rft.au=Birkholzer%2C+Jens+T%3BAnonymous&rft.aulast=Birkholzer&rft.aufirst=Jens&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-03-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Laser ablation molecular isotopic spectroscopy (LAMIS) AN - 1869032427; 2017-011192 AB - Laser ablation is an excellent technology for rapidly measuring the chemistry (elemental and isotope content) of a sample [1]. The laser pulse duration and energy drives the process of ablation, which converts a portion of a sample into a luminous optical plasmas that condenses to a fine aerosol. Chemical analysis is instantaneous by measuring the emission spectra in the optical plasma, or by transporting the aerosol to a secondary source for excitation and analysis. The physics of the laser matter interaction influences chemical analysis capabilities, including range of elements detected, sensitivity of converting laser photons to ablated mass, and accuracy and precision of analysis. Traditionally, laser ablation sampling has been coupled with ICP-MS (Inductively Coupled Plasma Mass Spectrometry) for sensitive isotopic analysis. Alternatively, optical emission from the luminous plasma initiated by the ablation process at the sample surface can be monitored and provide elemental analysis and in some cases isotopic analysis. This well-known optical approach is called LIBS (Laser-Induced Breakdown Spectroscopy). Overall, LIBS is not ideally suited for isotopic analysis due to poorly resolved spectral shifts in atomic and ionic spectra from isotopes, especially in atmospheric pressure laser plasmas. However, our new technology LAMIS (Laser Ablation Molecular Isotopic Spectroscopy) shows the ability to perform isotope measurements in these laser plasmas at atmospheric pressure [2-3]. By expanding the capabilities of classical LIBS to emphasize the measurement of molecular emission spectra in addition to elemental, LAMIS provides the ability to measure all elements and their isotopes, especially light elements like Li, Be, C, N, O which are impossible with XRF. Molecular isotopic shifts are orders of magnitude greater than atomic and ionic transitions. By measuring molecular emission spectra as the plasma cools, isotopic spectral splitting is enhanced up to several orders of magnitude. We developed LAMIS to date by demonstrating its ability to measure B, C, H, D, Sr and other isotopes. We demonstrated low percent levels for sensitivity and have experimental plans to meet ppm levels. For some isotopes, we have achieved < 0.1% precision. The talk will describe the isotope work that has been reported in LIBS plasmas and show how LAMIS expands those capabilities. JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Russo, R E AU - Mao, X L AU - Bol'shakov, A A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 3321 PB - [International Geological Congress], [location varies] VL - 35 KW - methods KW - chemical analysis KW - laser methods KW - isotopes KW - LAMIS KW - laser ablation molecular isotopic spectroscopy KW - laser ablation KW - spectroscopy KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1869032427?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=Laser+ablation+molecular+isotopic+spectroscopy+%28LAMIS%29&rft.au=Russo%2C+R+E%3BMao%2C+X+L%3BBol%27shakov%2C+A+A%3BAnonymous&rft.aulast=Russo&rft.aufirst=R&rft.date=2016-01-01&rft.volume=35&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ L2 - http://www.americangeosciences.org/sites/default/files/igc/3321.pdf LA - English DB - GeoRef N1 - Conference title - 35th international geological congress N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by International Geological Congress Organizational Committee N1 - Date revised - 2017-01-01 N1 - Number of references - 3 N1 - Document feature - illus. N1 - SuppNotes - Accessed on Jan. 25, 2017 N1 - Last updated - 2017-02-17 N1 - CODEN - IGABBY N1 - SubjectsTermNotLitGenreText - chemical analysis; isotopes; LAMIS; laser ablation; laser ablation molecular isotopic spectroscopy; laser methods; methods; spectroscopy ER - TY - JOUR T1 - Biochemical requirements for enzymatic perchlorate reduction: What makes a perchlorate reductase a perchlorate reductase? AN - 1861113194; 782782-24 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Youngblut, Matthew D AU - Carlson, Hans K AU - Tsai, Chi-Lin AU - Tainer, John A AU - Iavarone, Anthony T AU - Coates, John D AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 3624 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861113194?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Biochemical+requirements+for+enzymatic+perchlorate+reduction%3A+What+makes+a+perchlorate+reductase+a+perchlorate+reductase%3F&rft.au=Youngblut%2C+Matthew+D%3BCarlson%2C+Hans+K%3BTsai%2C+Chi-Lin%3BTainer%2C+John+A%3BIavarone%2C+Anthony+T%3BCoates%2C+John+D%3BAnonymous&rft.aulast=Youngblut&rft.aufirst=Matthew&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=3624&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/3624.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Phylogenomic and physiological exploration of novel clades of the phylum Chloroflexi from Great Boiling Spring, Nevada, USA AN - 1861112597; 782777-20 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Thomas, S C AU - Dodsworth, J A AU - Zhou, E AU - Murugapiran, S K AU - Woyke, T AU - Shaprio, N AU - Bowen, B AU - Silva, L P AU - Northen, T R AU - Hedlund, B P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 3120 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861112597?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Phylogenomic+and+physiological+exploration+of+novel+clades+of+the+phylum+Chloroflexi+from+Great+Boiling+Spring%2C+Nevada%2C+USA&rft.au=Thomas%2C+S+C%3BDodsworth%2C+J+A%3BZhou%2C+E%3BMurugapiran%2C+S+K%3BWoyke%2C+T%3BShaprio%2C+N%3BBowen%2C+B%3BSilva%2C+L+P%3BNorthen%2C+T+R%3BHedlund%2C+B+P%3BAnonymous&rft.aulast=Thomas&rft.aufirst=S&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=3120&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/3120.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Diffusion in clays: molecular scale view, continuum scale modeling and importance of microstructure. AN - 1861112476; 782777-61 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Christophe, Tournassat AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 3161 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861112476?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Diffusion+in+clays%3A+molecular+scale+view%2C+continuum+scale+modeling+and+importance+of+microstructure.&rft.au=Christophe%2C+Tournassat%3BAnonymous&rft.aulast=Christophe&rft.aufirst=Tournassat&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=3161&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/3161.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Dark Production of Hydrogen Peroxide in Groundwater at Rifle, Colorado AN - 1861112324; 782782-43 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Yuan, Xiu AU - Nico, Peter S AU - Williams, Kenneth H AU - Hobson, Chad AU - Davis, James A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 3643 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861112324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Dark+Production+of+Hydrogen+Peroxide+in+Groundwater+at+Rifle%2C+Colorado&rft.au=Yuan%2C+Xiu%3BNico%2C+Peter+S%3BWilliams%2C+Kenneth+H%3BHobson%2C+Chad%3BDavis%2C+James+A%3BAnonymous&rft.aulast=Yuan&rft.aufirst=Xiu&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=3643&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/3643.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Field-scale experiments for developing solutions to subsurface energy challenges AN - 1861110711; 787345-17 AB - Scale is the single most important element common to all of the crosscutting challenges facing the nation and the world to improve the utilization of subsurface energy resources. From enhanced geothermal systems, to unconventional oil and gas, and from geologic carbon sequestration to nuclear waste disposal, useful and practical subsurface energy systems are large, typically on the order of kilometers or more on a side, extending to depths of a few to several kilometers. A common configuration for carbon sequestration and oil and gas systems comprises a reservoir rock, into which fluids can be injected and/or withdrawn through an array of deep wells spread out over the landscape, and a cap rock or seal on top of the reservoir. When reservoir and cap-rock systems reach useful dimensions (e.g., greater than 100 m in size), faults and possibly large variations in properties may be encountered. These heterogeneities can make the systems behave fundamentally differently from smaller systems (e.g., less than 10 m) and may require innovative permeability control for optimal utilization. In order to reduce uncertainties and develop robust designs and optimal procedures for operating large-scale energy systems, we need to undertake field tests on scales greater than 100 m. Without such tests, researchers and engineers must extrapolate their laboratory and small-scale field results to large-scales, a process known as upscaling that is fraught with uncertainty. The goal of large-scale field testing is to (1) observe performance over similar length scales to those over which the technology will need to be applied to be a useful solution to our energy needs, (2) validate models and concepts needed to design and optimize the technology, (3) develop and test monitoring strategies applicable to large length scales, and (4) develop and confirm upscaling approaches to exploit the existing knowledge base and data that have been measured in the lab or from previous smaller scale testing. Building upon a variety of previous field tests, researchers and innovative companies need to now expand field-scale testing to larger scales to develop crosscutting capabilities in controlling permeability and fluid flow through carefully controlled and monitored stimulation and fluid injection/withdrawal processes. JF - Abstracts with Programs - Geological Society of America AU - Oldenburg, Curtis M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 57 EP - 6 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861110711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Field-scale+experiments+for+developing+solutions+to+subsurface+energy+challenges&rft.au=Oldenburg%2C+Curtis+M%3BAnonymous&rft.aulast=Oldenburg&rft.aufirst=Curtis&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Imaging fracture networks using joint seismic and electrical change detection techniques AN - 1861110676; 787345-16 AB - Imaging fractures is a notoriously difficult task. Generally speaking this difficulty is attributed to the tortuous nature and fine structure in fractured systems. These features are often challenging to resolve in field settings due to temporal and/or spatial constraints. In an effort to highlight the advancements in geophysical imaging of fractures, as well as the topics where the most gain could be realized from targeted research, this SubTER team undertook a number of extensive near field fracture imaging experiments. During the initially phase of this SubTER project, Sandia National Labs (SNL) conducted a series of high resolution seismic imaging campaigns designed to characterize induced fractures. Fractures were emplaced using a novel explosive source that limits damage to the borehole. In the next phase of the project, SNL and its collaborators (LBNL, LLNL, and PNNL) developed and demonstrated emerging seismic and electrical geophysical imaging technologies that characterized 1) the 3D extent and distribution of fractures stimulated from the explosive source, 2) 3D fluid transport within the stimulated fracture network through use of a particulate tracer, and 3) fracture attributes through advanced data analysis. The project consisted of two phases. The objective of the first phase was to collect a comprehensive set of 4D crosshole seismic and electrical data to image the fracture network generated from a novel explosive source. In addition, autonomous seismic and electrical resistance tomography (ERT) data were collected to image the migration of a tracer designed to enhance the electrical conductivity contrast of the fracture network. Near real-time 4D ERT imaging was tested and demonstrated during this phase. The objective of the second phase was to use data collected during the first phase to 1) develop methods of estimating fracture attributes from seismic data, 2) develop methods of assimilating disparate and transient data sets to improve fracture network imaging resolution, and 3) advance capabilities for near real-time inversion of cross-hole tomographic data. Advancements in these areas are relevant to all situations where fracture stimulation is used for reservoir stimulation (e.g. Enhanced Geothermal Systems (EGS) and tight shale gases). JF - Abstracts with Programs - Geological Society of America AU - Knox, Hunter Anne AU - Ajo-Franklin, Jonathan AU - Johnson, Timothy AU - Morris, Joseph AU - Grubelich, Mark AU - King, Dennis AU - Preston, Leiph AU - Knox, James AU - Vermeul, Vince AU - James, Stephanie AU - Strickland, Christopher AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 57 EP - 5 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861110676?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Imaging+fracture+networks+using+joint+seismic+and+electrical+change+detection+techniques&rft.au=Knox%2C+Hunter+Anne%3BAjo-Franklin%2C+Jonathan%3BJohnson%2C+Timothy%3BMorris%2C+Joseph%3BGrubelich%2C+Mark%3BKing%2C+Dennis%3BPreston%2C+Leiph%3BKnox%2C+James%3BVermeul%2C+Vince%3BJames%2C+Stephanie%3BStrickland%2C+Christopher%3BAnonymous&rft.aulast=Knox&rft.aufirst=Hunter&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Understanding the thmc evolution of bentonite barrier - modeling an in situ test for bentonite backfilled engineered barrier system AN - 1861109101; 787355-19 AB - The most common buffer material for engineered barrier system (EBS) is compacted bentonite, which features low permeability and high retardation of radionuclide transport. The safety functions of EBS bentonite include limiting transport in the near field; damping the shear movement of the host rock; preventing the sinking of canisters, limiting pressure on the canister and rock, and reducing microbial activity. To assess whether EBS bentonite can maintain these favorable features when undergoing heating from the waste package and hydration from the host rock, we need a thorough understanding of the thermal, hydrological, mechanical, and chemical evolution of bentonite under disposal conditions. The FEBEX (Full-scale Engineered Barrier EXperiment) in situ test was dismantled after 18 years' heating and hydration.aThe comprehensive THMC data obtained in the test provide a unique opportunity to validate coupled THMC models and deepen our understanding of the THMC evolution in bentonite. In this presentation, coupled THMC models were developed for the in situ test. Water content data obtained after dismantling and relative humidity data measured real time showed that the hydration of bentonite is slower than predicted by the typical Darcy flow model. Including Non-Darcian flow into the model however leads a significant underestimation of the relative humidity data. The reason could be that the calibration of relative permeability (and retention curve) already encompasses the nonlinear relationship between gradient and flux for bentonite, which would obviate the consideration of Non-Darcian flow in the model. THMC models that take into account the porosity and permeability changes due to mechanical processes match reasonably well all the THM data. However, they did not provide a desirable fit of the measured Cl concentration profile, further calibration of porosity/permeability changes over the course of hydration and swelling or considering other coupled process such as thermal osmosis are needed for the model to sufficiently explain all the THMC data. Model results also showed that transport processes, i.e. advection and diffusion, control the concentration profile of conservative species (Cl for example) and play a major role in shaping the profile of most reactive species except pH and bicarbonate. JF - Abstracts with Programs - Geological Society of America AU - Zheng, Liange AU - Xu, Hao AU - Rutqvist, Jonny AU - Birkholzer, Jens T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 131 EP - 6 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861109101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Understanding+the+thmc+evolution+of+bentonite+barrier+-+modeling+an+in+situ+test+for+bentonite+backfilled+engineered+barrier+system&rft.au=Zheng%2C+Liange%3BXu%2C+Hao%3BRutqvist%2C+Jonny%3BBirkholzer%2C+Jens+T%3BAnonymous&rft.aulast=Zheng&rft.aufirst=Liange&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Effects of clay microstructure on uranium(vi) sorption and diffusion AN - 1861109043; 787353-85 AB - A prediction of metal adsorption and diffusion processes in clay-rich media is complicated by (1) the complexity of the mineralogical structure of montmorillonite clay, in terms of its pore-size distributions and available surface site types, and (2) the often complex metal solution speciation, which can include cationic, uncharged, and anionic complexes, depending on solution conditions. Clay particles consist of stacks of negatively-charged smectite layers, which leads to two types of porosities: (1) large pores between clay particles, with little influence of electric-double-layer forces, and (2) very thin interlayer spaces within individual clay particles, where diffusion is impacted by surface charge and ionic strength. Furthermore, these two porous regimes provide different surface environments for contaminant sorption reactions. Electrostatic and hydration forces only are thought to govern cation exchange reactions in interlayer spaces, whereas chemical bonding with surface ligands is dominant for surface complexation reactions at edge sites of clay particles. Finally, a 'spillover' effect may occur, where the electrostatic surface potential of basal cation exchange sites influences the surface potential of neighboring edge sites. As sorption and diffusion processes are expected to take place differently in these two volumes, this essentially creates two 'small-scale diffusion pathways', where each one becomes dominant under different system conditions. For instance, at high pH a partial or full exclusion of anions from negatively charged clay interlayer spaces could decrease the effective 'anion-accessible' porosity and diffusive flux under steady state conditions, while at low pH the 'surface diffusion' of weakly-adsorbed cations could increase the overall flux. We will discuss the effects of these clay microstructure characteristics on metal sorption and diffusion processes, using uranium(VI) as example. Our results from lab-scale U(VI)-montmorillonite diffusion experiments at alkaline pH demonstrate the importance of anion exclusion effects. A new U(VI)-montmorillonite surface complexation model, that specifically accounts for the 'spillover' effect, allows us to predict U(VI) sorption under varying conditions with a minimum number of fitting parameters. JF - Abstracts with Programs - Geological Society of America AU - Tinnacher, Ruth M AU - Davis, James A AU - Tournassat, Christophe AU - Birkholzer, Jens AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 119 EP - 2 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861109043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Effects+of+clay+microstructure+on+uranium%28vi%29+sorption+and+diffusion&rft.au=Tinnacher%2C+Ruth+M%3BDavis%2C+James+A%3BTournassat%2C+Christophe%3BBirkholzer%2C+Jens%3BAnonymous&rft.aulast=Tinnacher&rft.aufirst=Ruth&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - First results of aseismic fault slip and leakage preceding an earthquake induced during an in situ fault reactivation experiment in shales (mont terri fs experiment, Switzerland) AN - 1861108956; 787350-93 AB - Understanding fault reactivation is critical in geologic wastewater disposal, hydraulic fracturing, and CO2 sequestration because it may result in enhanced fault permeability, potentially inducing fluid leakage from the injection zone through overlying caprock and eventually triggering shallow seismic events. Here we show preliminary results from a controlled field stimulation experiment (FS experiment dedicated to the hydro-mechanical characterization of in-situ clay fault slip) conducted in a N140�-dipping 50-to-60�SE fault in a clay formation in the Mont Terri Underground Research Laboratory (Switzerland). We measured fault slip and seismicity induced by fluid-injection in a natural fault at a depth of 300 m. We observe multiple dilatant slip events ( nearly equal 30 micrometer/s) associated with factor-of-1000 increase of permeability, and a magnitude nearly equal -2.5 main seismic event associated with a swarm of very small magnitude ones. Seismicity occurs after aseismic slip has been initiated within the fluid-pressurized zone of the fault. Two monitoring points set across the fault allow estimating that, at the onset of the seismicity, the radius of the fault patch invaded by pressurized fluid is nearly equal 5-to-7m which is larger than the approximate location of the seismic events. The seismic source radius which was estimated to nearly equal 1.2m indicates that only a fraction of the activated fault patch experienced unstable slip. Significantly different slip/dilation signals at the two monitoring points tend to show that patches of different fault hydromechanical properties could be controlling the slip stability. JF - Abstracts with Programs - Geological Society of America AU - Guglielmi, Yves AU - de Barros, Louis AU - Nussbaum, Christophe AU - Birkholzer, Jens AU - Cappa, Frederic AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 95 EP - 12 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861108956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=First+results+of+aseismic+fault+slip+and+leakage+preceding+an+earthquake+induced+during+an+in+situ+fault+reactivation+experiment+in+shales+%28mont+terri+fs+experiment%2C+Switzerland%29&rft.au=Guglielmi%2C+Yves%3Bde+Barros%2C+Louis%3BNussbaum%2C+Christophe%3BBirkholzer%2C+Jens%3BCappa%2C+Frederic%3BAnonymous&rft.aulast=Guglielmi&rft.aufirst=Yves&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - An overview of radioactive waste disposal research activities linked to international underground research laboratories AN - 1861108809; 787355-16 AB - After decades of focusing on disposal of radioactive waste in unsaturated fractured tuff, the United States' interest has shifted to alternative host rocks (e.g., clay, crystalline, salt), hydrogeologic conditions (i.e., saturated, reducing), and repository designs (e.g., bentonite backfill and seals). These alternatives are similar to those that have been investigated by international geologic disposal programs in Europe and Asia. Close collaboration with these programs allows U.S. researchers (1) to benefit from a deep knowledge base with regards to alternative repository solutions developed over decades, and (2) to participate in valuable field experiments conducted in operating underground research laboratories (URLs) not currently available in the U.S. To advance international collaboration, the United States disposal program has joined five multinational cooperation initiatives as a formal partner (e.g., the Mont Terri Project, the DECOVALEX Project, the FEBEX-DP Project, the SKB Task Forces), and has established a balanced portfolio of selected R&D projects collaborating with international peers. These projects cover a range of relevant R&D fields like near-field perturbation, engineered barrier integrity, radionuclide (RN) transport, and integrated system behavior. This presentation gives a brief overview of current R&D activities in the United States disposal research program involving international collaboration, with specific focus on activities that allow participation in field experiments conducted in underground research laboratories (URLs). The joint R&D with international researchers and the access to relevant data/experiments from a variety of URLs and host rocks has significantly improved the current technical basis for disposal in a range of potential host rock environments available in the United States. Comparison with experimental data has contributed to testing and validating predictive computational models for evaluation of disposal system performance in a variety of disposal system concepts. Comparison of model results with other international modeling groups, using their own simulation tools and conceptual understanding, has enhanced confidence in the robustness of predictive models used for performance assessment. JF - Abstracts with Programs - Geological Society of America AU - Birkholzer, Jens T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 131 EP - 3 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861108809?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=An+overview+of+radioactive+waste+disposal+research+activities+linked+to+international+underground+research+laboratories&rft.au=Birkholzer%2C+Jens+T%3BAnonymous&rft.aulast=Birkholzer&rft.aufirst=Jens&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Modeling the spatiotemporal variability in subsurface thermal regimes across a low-relief polygonal tundra landscape AN - 1861108280; 787111-22 AB - Vast carbon stocks stored in permafrost soils of Arctic tundra are under risk of release to the atmosphere under warming climate scenarios. Ice-wedge polygons in the low-gradient polygonal tundra create a complex mosaic of microtopographic features. This microtopography plays a critical role in regulating the fine-scale variability in thermal and hydrological regimes in the polygonal tundra landscape underlain by continuous permafrost. Modeling of thermal regimes of this sensitive ecosystem is essential for understanding the landscape behavior under the current as well as changing climate. We present here an end-to-end effort for high-resolution numerical modeling of thermal hydrology at real-world field sites, utilizing the best available data to characterize and parameterize the models. We develop approaches to model the thermal hydrology of polygonal tundra and apply them at four study sites near Barrow, Alaska, spanning across low to transitional to high-centered polygons, representing a broad polygonal tundra landscape. A multiphase subsurface thermal hydrology model (PFLOTRAN) was developed and applied to study the thermal regimes at four sites. Using a high-resolution lidar digital elevation model (DEM), microtopographic features of the landscape were characterized and represented in the high-resolution model mesh. The best available soil data from field observations and literature were utilized to represent the complex heterogeneous subsurface in the numerical model. Simulation results demonstrate the ability of the developed modeling approach to capture - without recourse to model calibration - several aspects of the complex thermal regimes across the sites, and provide insights into the critical role of polygonal tundra microtopography in regulating the thermal dynamics of the carbon-rich permafrost soils. Areas of significant disagreement between model results and observations highlight the importance of field-based observations of soil thermal and hydraulic properties for modeling-based studies of permafrost thermal dynamics, and provide motivation and guidance for future observations that will help address model and data gaps affecting our current understanding of the system. JF - The Cryosphere (Online) AU - Kumar, Jitendra AU - Collier, Nathan AU - Bisht, Gautam AU - Mills, Richard T AU - Thornton, Peter E AU - Iversen, Colleen M AU - Romanovsky, Vladimir Y1 - 2016 PY - 2016 DA - 2016 SP - 2241 EP - 2274 PB - Copernicus on behalf of the European Geosciences Union, Katlenburg-Lindau VL - 10 IS - 5 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861108280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Cryosphere+%28Online%29&rft.atitle=Modeling+the+spatiotemporal+variability+in+subsurface+thermal+regimes+across+a+low-relief+polygonal+tundra+landscape&rft.au=Kumar%2C+Jitendra%3BCollier%2C+Nathan%3BBisht%2C+Gautam%3BMills%2C+Richard+T%3BThornton%2C+Peter+E%3BIversen%2C+Colleen+M%3BRomanovsky%2C+Vladimir&rft.aulast=Kumar&rft.aufirst=Jitendra&rft.date=2016-01-01&rft.volume=10&rft.issue=5&rft.spage=2241&rft.isbn=&rft.btitle=&rft.title=The+Cryosphere+%28Online%29&rft.issn=1994-0424&rft_id=info:doi/ L2 - http://www.the-cryosphere.net/10/2241/2016/tc-10-2241-2016.pdf http://www.the-cryosphere.net/volumes_and_issues.html LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Number of references - 41 N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Evaluation of air-soil temperature relationships simulated by land surface models during winter across the permafrost region AN - 1861104583; 781827-23 AB - A realistic simulation of snow cover and its thermal properties are important for accurate modelling of permafrost. We analyse simulated relationships between air and near-surface (20 cm) soil temperatures in the Northern Hemisphere permafrost region during winter, with a particular focus on snow insulation effects in nine land surface models, and compare them with observations from 268 Russian stations. There are large cross-model differences in the simulated differences between near-surface soil and air temperatures (Delta T; 3 to 14 degrees C), in the sensitivity of soil-to-air temperature (0.13 to 0.96 degrees C degrees C (super -1) ), and in the relationship between Delta T and snow depth. The observed relationship between Delta T and snow depth can be used as a metric to evaluate the effects of each model's representation of snow insulation, hence guide improvements to the model's conceptual structure and process parameterisations. Models with better performance apply multilayer snow schemes and consider complex snow processes. Some models show poor performance in representing snow insulation due to underestimation of snow depth and/or overestimation of snow conductivity. Generally, models identified as most acceptable with respect to snow insulation simulate reasonable areas of near-surface permafrost (13.19 to 15.77 million km (super 2) ). However, there is not a simple relationship between the sophistication of the snow insulation in the acceptable models and the simulated area of Northern Hemisphere near-surface permafrost, because several other factors, such as soil depth used in the models, the treatment of soil organic matter content, hydrology and vegetation cover, also affect the simulated permafrost distribution. JF - The Cryosphere (Online) AU - Wang, Wenli AU - Rinke, Annette AU - Moore, John C AU - Ji, Duoying AU - Cui, Xuefeng AU - Peng, Shushi AU - Lawrence, David M AU - McGuire, A David AU - Burke, Eleanor J AU - Chen, Xiaodong AU - Decharme, Bertrand AU - Koven, Charles AU - MacDougall, Andrew AU - Saito, Kazuyuki AU - Zhang, Wenxin AU - Alkama, Ramdane AU - Bohn, Theodore J AU - Ciais, Philippe AU - Delire, Christine AU - Gouttevin, Isabelle AU - Hajima, Tomohiro AU - Krinner, Gerhard AU - Lettenmaier, Dennis P AU - Miller, Paul A AU - Smith, Benjamin AU - Sueyoshi, Tetsuo AU - Sherstiukov, Artem B Y1 - 2016 PY - 2016 DA - 2016 SP - 1721 EP - 1737 PB - Copernicus on behalf of the European Geosciences Union, Katlenburg-Lindau VL - 10 IS - 4 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861104583?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Cryosphere+%28Online%29&rft.atitle=Evaluation+of+air-soil+temperature+relationships+simulated+by+land+surface+models+during+winter+across+the+permafrost+region&rft.au=Wang%2C+Wenli%3BRinke%2C+Annette%3BMoore%2C+John+C%3BJi%2C+Duoying%3BCui%2C+Xuefeng%3BPeng%2C+Shushi%3BLawrence%2C+David+M%3BMcGuire%2C+A+David%3BBurke%2C+Eleanor+J%3BChen%2C+Xiaodong%3BDecharme%2C+Bertrand%3BKoven%2C+Charles%3BMacDougall%2C+Andrew%3BSaito%2C+Kazuyuki%3BZhang%2C+Wenxin%3BAlkama%2C+Ramdane%3BBohn%2C+Theodore+J%3BCiais%2C+Philippe%3BDelire%2C+Christine%3BGouttevin%2C+Isabelle%3BHajima%2C+Tomohiro%3BKrinner%2C+Gerhard%3BLettenmaier%2C+Dennis+P%3BMiller%2C+Paul+A%3BSmith%2C+Benjamin%3BSueyoshi%2C+Tetsuo%3BSherstiukov%2C+Artem+B&rft.aulast=Wang&rft.aufirst=Wenli&rft.date=2016-01-01&rft.volume=10&rft.issue=4&rft.spage=1721&rft.isbn=&rft.btitle=&rft.title=The+Cryosphere+%28Online%29&rft.issn=1994-0424&rft_id=info:doi/ L2 - http://www.the-cryosphere.net/10/1721/2016/tc-10-1721-2016.pdf http://www.the-cryosphere.net/volumes_and_issues.html LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Number of references - 71 N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - The kISMET (permeability (K) and induced seismicity management for energy technologies) project; an underground field laboratory for investigating the relations between natural and induced fractures, stress field, and rock fabric AN - 1861101258; 787338-43 AB - kISMET is part of the US Department of Energy's Subsurface Technology & Engineering Research (SubTER) crosscutting initiative for adaptive control of fractures, reactions, and flow in the subsurface. The project is located at the Sanford Underground Research Facility (SURF) in the former Homestake gold mine in Lead, SD. The kISMET site consists of five closely spaced near-vertical boreholes on the 4850 level that are designed for a series of hydraulic fracturing stress measurements and induced-fracture stimulation experiments. Four of the boreholes are HQ-sized holes that are 50 m in depth and will host monitoring sensors; in conjunction with a central NQ borehole they form a five-spot pattern at depth. The monitoring boreholes are located nearly equal 3 m away from the central borehole, allowing for very precise monitoring of fracture initiation and growth. The host rock is the Poorman Formation, a highly foliated phyllite that is steeply dipping at the kISMET site. Initial characterization of the site is being conducted using core samples, televiewer logs, and extensive preexisting geologic data. A straddle packer assembly will be installed at several depths in the central borehole to conduct stress measurements, and later to perform a series of hydrofracture stimulations. Preliminary analytical and numerical fracture initiation and growth model simulations conducted using existing geomechanical data for the Poorman phyllite suggest rock breakdown pressures in the range of 35-50 MPa. Two primary methods will be employed to monitor the experiments: continuous active-source seismic monitoring (CASSM) and electrical resistivity tomography (ERT); these will be complemented by passive microseismic (MEQ), pore pressure and injection rate monitoring. These experiments are aimed at understanding the effects of stress state, rock fabric, existing fractures, and stimulation approach on the character of the fracture(s) created (e.g., permeability enhancement, size, orientation, aperture), the fracturing process, and the associated induced microseismicity. Results of this research will be directly applicable to fracture stimulation and reservoir creation in Enhanced Geothermal Systems (EGS). JF - Abstracts with Programs - Geological Society of America AU - Dobson, Patrick F AU - Oldenburg, Curtis M AU - Daley, Thomas M AU - Birkholzer, Jens T AU - Cook, Paul J AU - Ajo-Franklin, Jonathan AU - Rutqvist, Jonny AU - Siler, Drew L AU - Kneafsey, Timothy J AU - Nakagawa, Seiji AU - Wu, Yuxin AU - Guglielmi, Yves AU - Ulrich, Craig AU - Wang, Herb F AU - Haimson, Bezalel C AU - Sone, Hiroki AU - Vigilante, Peter AU - Roggenthen, William M AU - Doe, Thomas W AU - Lee, Moo Y AU - Mattson, Earl D AU - Huang, Hai AU - Johnson, Timothy J AU - Morris, Joseph P AU - White, Joshua A AU - Johnson, Paul A AU - Coblentz, David D AU - Heise, Jaret AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 4 EP - 9 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861101258?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+kISMET+%28permeability+%28K%29+and+induced+seismicity+management+for+energy+technologies%29+project%3B+an+underground+field+laboratory+for+investigating+the+relations+between+natural+and+induced+fractures%2C+stress+field%2C+and+rock+fabric&rft.au=Dobson%2C+Patrick+F%3BOldenburg%2C+Curtis+M%3BDaley%2C+Thomas+M%3BBirkholzer%2C+Jens+T%3BCook%2C+Paul+J%3BAjo-Franklin%2C+Jonathan%3BRutqvist%2C+Jonny%3BSiler%2C+Drew+L%3BKneafsey%2C+Timothy+J%3BNakagawa%2C+Seiji%3BWu%2C+Yuxin%3BGuglielmi%2C+Yves%3BUlrich%2C+Craig%3BWang%2C+Herb+F%3BHaimson%2C+Bezalel+C%3BSone%2C+Hiroki%3BVigilante%2C+Peter%3BRoggenthen%2C+William+M%3BDoe%2C+Thomas+W%3BLee%2C+Moo+Y%3BMattson%2C+Earl+D%3BHuang%2C+Hai%3BJohnson%2C+Timothy+J%3BMorris%2C+Joseph+P%3BWhite%2C+Joshua+A%3BJohnson%2C+Paul+A%3BCoblentz%2C+David+D%3BHeise%2C+Jaret%3BAnonymous&rft.aulast=Dobson&rft.aufirst=Patrick&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Laboratory visualization and acoustic emission monitoring of hydraulic fracturing in a complex, fractured medium AN - 1861101191; 787342-18 AB - Fracture propagation in rock can be affected strongly by open and healed (or filled) preexisting fractures, resulting in changes in the propagation paths and complex branching. The resulting network of hydraulically connected complex fractures is considered critical for efficient and economical production of oil and gas, and circulation of geothermal fluids. Evidence for the complex fracturing is mostly from microearthquake (MEQ) observations in the field and numerical simulations while direct observations in the laboratory are still scarce. In this presentation, we will show recently developed methodologies and the results from laboratory hydraulic fracturing visualization experiments. Optical visualization experiments are conducted in transparent glass cubes containing varying degrees of heterogeneity consisting of fractures and microcracks. These defects are either etched in the rock (glass) matrix using 3D laser engraving based upon specified fracture geometry and patterns, or produced by thermal quenching (and partial rehealing) which result in varying degrees of fracture density, strength, and connectivity (or permeability). Fluorescent dye is used to enhance the images of the thin fractures, assisted by illumination by laser and UV light. In anisotropic (and opaque) shale blocks, the samples are scanned via X-ray CT, assisted by contrast-enhancing fluid (liquid metal) to improve the visibility of thin hydraulic fractures. Using the transparent glass samples for optical visualization, we investigate the impact of fluid viscosity and injection rate on the geometry of the hydraulic fracture and fracture network produced by fluid injection, while the sample cubes are subjected to true-triaxial stresses. In the optical visualization experiments, propagation of the fractures and evolution of fracture networks can be observed through a mirror and a port hole installed in loading platens. Concurrently, we determine the locations of fracturing from acoustic emissions and correlate them to the optical images of the fractures. The experiments indicate that changes in the fluid injection rate (and viscosity) can modify the geometry of the hydraulic fractures, which may be a key to improved control of subsurface permeability. JF - Abstracts with Programs - Geological Society of America AU - Nakagawa, Seiji AU - Kneafsey, Timothy J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 33 EP - 7 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861101191?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Laboratory+visualization+and+acoustic+emission+monitoring+of+hydraulic+fracturing+in+a+complex%2C+fractured+medium&rft.au=Nakagawa%2C+Seiji%3BKneafsey%2C+Timothy+J%3BAnonymous&rft.aulast=Nakagawa&rft.aufirst=Seiji&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2016 annual meeting & exposition N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Reactive transport modeling for evaluation and optimization of architected materials AN - 1861091344; 782775-45 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Steefel, Carl AU - Tournassat, Christophe AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2945 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861091344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Reactive+transport+modeling+for+evaluation+and+optimization+of+architected+materials&rft.au=Steefel%2C+Carl%3BTournassat%2C+Christophe%3BAnonymous&rft.aulast=Steefel&rft.aufirst=Carl&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2945&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2945.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Biomineral vaterite spicules do not grow from amorphous calcium carbonate, they grow ion by ion from solution AN - 1861091343; 782771-23 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Pokroy, Boaz AU - Kabalah-Amitai, Lee AU - Polishchuk, I Ryna AU - Devol, Ross T AU - Blonsky, Adam Z AU - Sun, Chang-Yu AU - Marcus, Matthew A AU - Scholl, Andreas AU - Gilbert, Pupa U P A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2523 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861091343?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Biomineral+vaterite+spicules+do+not+grow+from+amorphous+calcium+carbonate%2C+they+grow+ion+by+ion+from+solution&rft.au=Pokroy%2C+Boaz%3BKabalah-Amitai%2C+Lee%3BPolishchuk%2C+I+Ryna%3BDevol%2C+Ross+T%3BBlonsky%2C+Adam+Z%3BSun%2C+Chang-Yu%3BMarcus%2C+Matthew+A%3BScholl%2C+Andreas%3BGilbert%2C+Pupa+U+P+A%3BAnonymous&rft.aulast=Pokroy&rft.aufirst=Boaz&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2523&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2523.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Evaluating degradation of organic matter in Murchison meteorite captured by aerogel after hypervelocity experiments AN - 1861091251; 782769-74 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Okudaira AU - Kebukawa, Y AU - Yabuta, H AU - Nakato, A AU - Kilcoyne, D AU - Hasegawa, S AU - Tabata, M AU - Kobayashi, K AU - Yano, H AU - Yamagishi, A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2374 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861091251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Evaluating+degradation+of+organic+matter+in+Murchison+meteorite+captured+by+aerogel+after+hypervelocity+experiments&rft.au=Okudaira%3BKebukawa%2C+Y%3BYabuta%2C+H%3BNakato%2C+A%3BKilcoyne%2C+D%3BHasegawa%2C+S%3BTabata%2C+M%3BKobayashi%2C+K%3BYano%2C+H%3BYamagishi%2C+A%3BAnonymous&rft.aulast=Okudaira&rft.aufirst=&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2374&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2374.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Microcontinuum modeling of CO2-water-rock interaction AN - 1861090940; 782775-44 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Steefel, Carl AU - Beckingham, Lauren AU - Landrot, Gautier AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2944 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861090940?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Microcontinuum+modeling+of+CO2-water-rock+interaction&rft.au=Steefel%2C+Carl%3BBeckingham%2C+Lauren%3BLandrot%2C+Gautier%3BAnonymous&rft.aulast=Steefel&rft.aufirst=Carl&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2944&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2944.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Incorporating mineralogical heterogeneity in pore scale models using a direct numerical simulation approach AN - 1861090847; 782767-28 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Molins, Sergi AU - Trebotich, David AU - Swift, Alexander AU - Steefel, Carl AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2128 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861090847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Incorporating+mineralogical+heterogeneity+in+pore+scale+models+using+a+direct+numerical+simulation+approach&rft.au=Molins%2C+Sergi%3BTrebotich%2C+David%3BSwift%2C+Alexander%3BSteefel%2C+Carl%3BAnonymous&rft.aulast=Molins&rft.aufirst=Sergi&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2128&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2128.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Effects of precipitation at the pore-scale on permeability and flow AN - 1861090827; 782769-1 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Noiriel, Catherine AU - Steefel, Carl AU - Yang, Li AU - Bernard, Dominique AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2301 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861090827?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Effects+of+precipitation+at+the+pore-scale+on+permeability+and+flow&rft.au=Noiriel%2C+Catherine%3BSteefel%2C+Carl%3BYang%2C+Li%3BBernard%2C+Dominique%3BAnonymous&rft.aulast=Noiriel&rft.aufirst=Catherine&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2301&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2301.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - STXM-NEXAFS: applying a new technique which helps to unravel the mystery of rock varnish AN - 1861080094; 784660-91 AB - Rock varnish is a black shiny layer on rock surfaces, present on slowly weathering rocks, independent of their lithology. Its main components are poorly crystallized Mn and Fe oxides and clay minerals. The latter are thought to be dust particles that have accumulated in this sedimentary structure over time. The genesis of rock varnish has been a matter of debate since its first description in 1812[1]. This material, which can be applied as paleoclimate archive, grows only micrometers per thousands of years and only up to an overall thickness of approximately 250 mu m. Consequently, techniques resolving nanometer structures are necessary to observe the information about the past. In this study, scanning transmission X-ray microscopy - near-edge X-ray absorption fine structure spectroscopy (STXM - NEXAFS) on focused ion beam (FIB) ultra-thin sections (100-200 nm thickness) was used. The FIB Ga+-ion sputtering (milling) was performed using an FEI Nova600Nanolab dual-beam instrument. The STXM-NEXAFS analysis was conducted using two X-ray microscopes: (1) the instrument at beamline 5.3.2.2[2] at the Advanced Light Source, Berkeley, CA, USA and (2) the MAXYMUS at beamline UE46-PGM-2[3] at the synchrotron BESSY II, Helmholtz-Zentrum Berlin, Germany. Both instruments are equipped with a high energy resolving grating, a Fresnel zone plate providing a spatial resolution of up to 30 nm, and phosphor-coated Lucite photomultiplier tubes for the detection of transmitted photons. Data were evaluated with the Interactive Data Language (IDL) widget "Analysis of X-ray microscopy Images and Spectra" (aXis2000). With STXM-NEXAFS, nanometer structures can be observed by element distribution mapping[4]. Sensitivity for functional groups and moieties might in addition provide an answer to the genesis of rock varnish (i.e., biogenic vs. abiogenic). Furthermore, oxidation states of elements such as Mn and Fe can be investigated to receive information about the nanocrystalline matrix-minerals of this material. Investigating the FIB sections, layered sequences of Mn- and Fe-rich were observed, which are thought to represent wet and dry climate episodes[5]. Element abundance changes in layers, such as for K and Ca, might display changing dust compositions over time. Cavities in the underlying rock, lined by Mn and Fe, are evidence for dissolution processes and case hardening. Furthermore, variations were observed within varnishes from different landforms, indicating diversity within the varnish genesis. Measurements of South African and urban sandstone varnishes by STXM showed varnishes without layered sequences, which have a Mn- and Ca-rich matrix, where Fe is only present in enclosed mineral particles. Thus, STXM-NEXAFS results provide detailed insights, but to solve the mystery of rock varnish, a combination of microanalytical techniques is required, since no single technique is able to provide all essential information on its own. JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Macholdt, D S AU - Poehlker, C AU - Foerster, J D AU - Weber, B AU - Kilcoyne, A L D AU - Weigand, M AU - Mueller, M AU - Lieberwirth, I AU - Jochum, K P AU - Kappl, M AU - Haug, G AU - Andreae, M O AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1045 PB - [International Geological Congress], [location varies] VL - 35 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861080094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=STXM-NEXAFS%3A+applying+a+new+technique+which+helps+to+unravel+the+mystery+of+rock+varnish&rft.au=Macholdt%2C+D+S%3BPoehlker%2C+C%3BFoerster%2C+J+D%3BWeber%2C+B%3BKilcoyne%2C+A+L+D%3BWeigand%2C+M%3BMueller%2C+M%3BLieberwirth%2C+I%3BJochum%2C+K+P%3BKappl%2C+M%3BHaug%2C+G%3BAndreae%2C+M+O%3BAnonymous&rft.aulast=Macholdt&rft.aufirst=D&rft.date=2016-01-01&rft.volume=35&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ L2 - http://www.americangeosciences.org/sites/default/files/igc/1045.pdf LA - English DB - GeoRef N1 - Conference title - 35th international geological congress N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by International Geological Congress Organizational Committee N1 - Number of references - 5 N1 - Last updated - 2017-01-24 N1 - CODEN - IGABBY ER - TY - JOUR T1 - How important is the hyporheic zone for biogeochemical cycling? AN - 1859791891; 2017-004454 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Dwivedi, Dipankar AU - Steefel, Carl I AU - Arora, Bhavna AU - Bisht, Gautam AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 730 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 KW - hydrology KW - sorption KW - meanders KW - oxygen KW - biochemistry KW - hyporheic zone KW - solution KW - nitrogen KW - geochemical cycle KW - nutrients KW - nitrogen cycle KW - precipitation KW - carbon KW - fluvial features KW - ecology KW - carbon cycle KW - fluvial environment KW - pH KW - Eh KW - 23:Geomorphology KW - 02C:Geochemistry of rocks, soils, and sediments KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859791891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=How+important+is+the+hyporheic+zone+for+biogeochemical+cycling%3F&rft.au=Dwivedi%2C+Dipankar%3BSteefel%2C+Carl+I%3BArora%2C+Bhavna%3BBisht%2C+Gautam%3BAnonymous&rft.aulast=Dwivedi&rft.aufirst=Dipankar&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=730&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/730.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Document feature - illus. incl. block diag. N1 - Last updated - 2017-01-19 N1 - SubjectsTermNotLitGenreText - biochemistry; carbon; carbon cycle; ecology; Eh; fluvial environment; fluvial features; geochemical cycle; hydrology; hyporheic zone; meanders; nitrogen; nitrogen cycle; nutrients; oxygen; pH; precipitation; solution; sorption ER - TY - JOUR T1 - Ecosystem functional zonation approach to integrate multi-type multiscale datasets for scaling above and below-ground control on carbon cycling AN - 1859790045; 2017-004176 JF - International Conference on Permafrost - Book of Abstracts AU - Wainwright, Haruko M AU - Dafflon, Baptiste AU - Tas, Neslihan AU - Wu, Yuxin AU - Torn, Margaret AU - Smith, Lydia AU - Curtis, John Bryan AU - Ulrich, Craig AU - Peterson, John E AU - Hubbard, Susan S Y1 - 2016 PY - 2016 DA - 2016 SP - 254 EP - 255 PB - [publisher varies], [location varies] VL - 11 KW - United States KW - permafrost KW - degradation KW - Arctic region KW - data processing KW - ecosystems KW - thawing KW - climate change KW - Barrow Alaska KW - geochemical cycle KW - carbon KW - ecology KW - Alaska KW - glacial geology KW - carbon cycle KW - polygons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859790045?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.atitle=Ecosystem+functional+zonation+approach+to+integrate+multi-type+multiscale+datasets+for+scaling+above+and+below-ground+control+on+carbon+cycling&rft.au=Wainwright%2C+Haruko+M%3BDafflon%2C+Baptiste%3BTas%2C+Neslihan%3BWu%2C+Yuxin%3BTorn%2C+Margaret%3BSmith%2C+Lydia%3BCurtis%2C+John+Bryan%3BUlrich%2C+Craig%3BPeterson%2C+John+E%3BHubbard%2C+Susan+S&rft.aulast=Wainwright&rft.aufirst=Haruko&rft.date=2016-01-01&rft.volume=11&rft.issue=&rft.spage=254&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh international conference on Permafrost; exploring permafrost in a future Earth N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Number of references - 3 N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2017-01-19 N1 - CODEN - #07985 N1 - SubjectsTermNotLitGenreText - Alaska; Arctic region; Barrow Alaska; carbon; carbon cycle; climate change; data processing; degradation; ecology; ecosystems; geochemical cycle; glacial geology; permafrost; polygons; thawing; United States ER - TY - JOUR T1 - Net effects of drying experiment on permafrost stability through radiocarbon signals AN - 1859789934; 2017-004150 JF - International Conference on Permafrost - Book of Abstracts AU - Kwon, Min Jung AU - Natali, Susan M AU - Pries, Caitlin Hicks AU - Crummer, K Grace AU - Schuur, Edward A G AU - Zimov, Nikita AU - Zimov, Sergey A AU - Heimann, Martin AU - Goeckede, Mathias Y1 - 2016 PY - 2016 DA - 2016 SP - 220 PB - [publisher varies], [location varies] VL - 11 KW - United States KW - experimental studies KW - permafrost KW - degradation KW - isotopes KW - tundra KW - Arctic region KW - ecosystems KW - Eight Mile Lake KW - climate change KW - geochemical cycle KW - laboratory studies KW - radioactive isotopes KW - carbon KW - climate effects KW - Alaska KW - carbon cycle KW - C-14 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859789934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.atitle=Net+effects+of+drying+experiment+on+permafrost+stability+through+radiocarbon+signals&rft.au=Kwon%2C+Min+Jung%3BNatali%2C+Susan+M%3BPries%2C+Caitlin+Hicks%3BCrummer%2C+K+Grace%3BSchuur%2C+Edward+A+G%3BZimov%2C+Nikita%3BZimov%2C+Sergey+A%3BHeimann%2C+Martin%3BGoeckede%2C+Mathias&rft.aulast=Kwon&rft.aufirst=Min&rft.date=2016-01-01&rft.volume=11&rft.issue=&rft.spage=220&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh international conference on Permafrost; exploring permafrost in a future Earth N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Last updated - 2017-01-19 N1 - CODEN - #07985 N1 - SubjectsTermNotLitGenreText - Alaska; Arctic region; C-14; carbon; carbon cycle; climate change; climate effects; degradation; ecosystems; Eight Mile Lake; experimental studies; geochemical cycle; isotopes; laboratory studies; permafrost; radioactive isotopes; tundra; United States ER - TY - JOUR T1 - Quantifying the biogeochemical processes and environmental controls that drive Arctic-boreal ecosystem carbon fluxes AN - 1855317577; 2017-000898 JF - International Conference on Permafrost - Book of Abstracts AU - Miller, Charles AU - Biraud, Sebastien AU - Bloom, Anthony AU - Budney, John AU - Chang, Rachel AU - Chazanoff, Seth AU - Commane, Roisin AU - Daube, Bruce AU - Fang, Yuanyuan AU - Gottlieb, Elaine AU - Hardman, Sean AU - Henderson, John AU - Jeong, Su-Jong AU - Karion, Anna AU - Kimball, John S AU - Koven, Charles AU - Kurosu, Thomas AU - Lawrence, David AU - Luus, Kristina AU - McDonald, Kyle AU - McKain, Kathryn AU - Michalak, Anna AU - Miller, John AU - Miller, Scot AU - Mouteva, Gergana AU - Oechel, Walt AU - Parazoo, Nicholas Cody AU - Pittman, Jasna AU - Podest, Erika AU - Potter, Chris AU - Randerson, James AU - Sachs, Torsten AU - Schimel, Dave AU - Slater, Andrew AU - Steiner, Nick AU - Sweeney, Colm AU - Torn, Margaret AU - Veraverbeke, Sander AU - Watts, Jennifer D AU - Wiggins, Elizabeth AU - Wofsy, Steve AU - Wolter, Sonja AU - Worthy, Doug AU - Yadav, Vineet AU - Zona, Donatella Y1 - 2016 PY - 2016 DA - 2016 SP - 295 EP - 296 PB - [publisher varies], [location varies] VL - 11 KW - soils KW - terrestrial environment KW - permafrost KW - methane KW - degradation KW - biochemistry KW - Arctic region KW - aliphatic hydrocarbons KW - alkanes KW - climate change KW - geochemical cycle KW - carbon dioxide KW - boreal environment KW - organic compounds KW - carbon KW - hydrocarbons KW - climate effects KW - ecology KW - carbon cycle KW - geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855317577?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.atitle=Quantifying+the+biogeochemical+processes+and+environmental+controls+that+drive+Arctic-boreal+ecosystem+carbon+fluxes&rft.au=Miller%2C+Charles%3BBiraud%2C+Sebastien%3BBloom%2C+Anthony%3BBudney%2C+John%3BChang%2C+Rachel%3BChazanoff%2C+Seth%3BCommane%2C+Roisin%3BDaube%2C+Bruce%3BFang%2C+Yuanyuan%3BGottlieb%2C+Elaine%3BHardman%2C+Sean%3BHenderson%2C+John%3BJeong%2C+Su-Jong%3BKarion%2C+Anna%3BKimball%2C+John+S%3BKoven%2C+Charles%3BKurosu%2C+Thomas%3BLawrence%2C+David%3BLuus%2C+Kristina%3BMcDonald%2C+Kyle%3BMcKain%2C+Kathryn%3BMichalak%2C+Anna%3BMiller%2C+John%3BMiller%2C+Scot%3BMouteva%2C+Gergana%3BOechel%2C+Walt%3BParazoo%2C+Nicholas+Cody%3BPittman%2C+Jasna%3BPodest%2C+Erika%3BPotter%2C+Chris%3BRanderson%2C+James%3BSachs%2C+Torsten%3BSchimel%2C+Dave%3BSlater%2C+Andrew%3BSteiner%2C+Nick%3BSweeney%2C+Colm%3BTorn%2C+Margaret%3BVeraverbeke%2C+Sander%3BWatts%2C+Jennifer+D%3BWiggins%2C+Elizabeth%3BWofsy%2C+Steve%3BWolter%2C+Sonja%3BWorthy%2C+Doug%3BYadav%2C+Vineet%3BZona%2C+Donatella&rft.aulast=Miller&rft.aufirst=Charles&rft.date=2016-01-01&rft.volume=11&rft.issue=&rft.spage=295&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh international conference on Permafrost; exploring permafrost in a future Earth N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Document feature - illus. N1 - Last updated - 2017-01-05 N1 - CODEN - #07985 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; Arctic region; biochemistry; boreal environment; carbon; carbon cycle; carbon dioxide; climate change; climate effects; degradation; ecology; geochemical cycle; geochemistry; hydrocarbons; methane; organic compounds; permafrost; soils; terrestrial environment ER - TY - JOUR T1 - Kinetic isotope effects during calcite growth; sensors of paleoenvironment and mineral surface dynamics AN - 1849308315; 2016-110652 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - DePaolo, Donald J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 650 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 KW - calcium KW - isotope fractionation KW - alkaline earth metals KW - magnesium KW - growth rates KW - isotopes KW - crystal growth KW - Sr/Ca KW - calcite KW - paleoenvironment KW - saturation KW - metals KW - calcium carbonate KW - chemical composition KW - kinetics KW - chemical ratios KW - carbonates KW - strontium KW - pH KW - minerals KW - mineral surface KW - 02D:Isotope geochemistry KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849308315?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Kinetic+isotope+effects+during+calcite+growth%3B+sensors+of+paleoenvironment+and+mineral+surface+dynamics&rft.au=DePaolo%2C+Donald+J%3BAnonymous&rft.aulast=DePaolo&rft.aufirst=Donald&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=650&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/650.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 4 N1 - Last updated - 2016-12-16 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; calcite; calcium; calcium carbonate; carbonates; chemical composition; chemical ratios; crystal growth; growth rates; isotope fractionation; isotopes; kinetics; magnesium; metals; mineral surface; minerals; paleoenvironment; pH; saturation; Sr/Ca; strontium ER - TY - JOUR T1 - Simulating fracture alteration caused by CO (sub 2) -water-rock interactions AN - 1849307753; 2016-110645 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Deng, Hang AU - Steefel, Carl AU - Molins, Sergi AU - DePaolo, Donald J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 643 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 KW - water KW - alteration KW - diffusion KW - carbon sequestration KW - site exploration KW - fluid flow KW - gas storage KW - deformation KW - solution KW - carbon dioxide KW - models KW - fractures KW - water-rock interaction KW - precipitation KW - brines KW - cap rocks KW - wettability KW - geochemistry KW - pH KW - permeability KW - storage KW - 30:Engineering geology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849307753?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Simulating+fracture+alteration+caused+by+CO+%28sub+2%29+-water-rock+interactions&rft.au=Deng%2C+Hang%3BSteefel%2C+Carl%3BMolins%2C+Sergi%3BDePaolo%2C+Donald+J%3BAnonymous&rft.aulast=Deng&rft.aufirst=Hang&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=643&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/643.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Last updated - 2016-12-16 N1 - SubjectsTermNotLitGenreText - alteration; brines; cap rocks; carbon dioxide; carbon sequestration; deformation; diffusion; fluid flow; fractures; gas storage; geochemistry; models; permeability; pH; precipitation; site exploration; solution; storage; water; water-rock interaction; wettability ER - TY - JOUR T1 - Broadband dielectric spectroscopy study of smectites, collation of simulations and experiments AN - 1849305603; 2016-110624 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Dazas, Baptiste AU - Gilbert, Benjamin AU - Bourg, Ian C AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 622 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 KW - water KW - silicates KW - experimental studies KW - diffusion KW - smectite KW - adsorption KW - ions KW - layered materials KW - clay minerals KW - conductivity KW - dynamics KW - dielectric properties KW - water content KW - sheet silicates KW - spectra KW - crystal chemistry KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849305603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Broadband+dielectric+spectroscopy+study+of+smectites%2C+collation+of+simulations+and+experiments&rft.au=Dazas%2C+Baptiste%3BGilbert%2C+Benjamin%3BBourg%2C+Ian+C%3BAnonymous&rft.aulast=Dazas&rft.aufirst=Baptiste&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=622&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/622.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Last updated - 2016-12-16 N1 - SubjectsTermNotLitGenreText - adsorption; clay minerals; conductivity; crystal chemistry; dielectric properties; diffusion; dynamics; experimental studies; ions; layered materials; sheet silicates; silicates; smectite; spectra; water; water content ER - TY - JOUR T1 - Produced water disposal injection in the southern San Joaquin Valley; no evidence of groundwater quality effects due to upward leakage AN - 1840622008; 2016-096697 AB - Upward migration of brine because of pressurization resulting from injection is a risk of disposal of water produced with oil and geologic carbon storage. Analysis of the net production in each zone associated with oil production activities in the southern San Joaquin Valley, California, determined that net injection caused by disposal of water produced with oil occurred in zones above the shallowest zone with net production in several oil fields. The zones with net injection are also variously at depths just greater than the shallowest depths for geologic carbon storage or at depths intermediate between more typical geologic carbon storage depths and overlying groundwater with a total dissolved solids concentration appropriate for domestic use. As such, these net injections provide analogs for brine pressurization caused by geologic carbon storage, either in the injection zone around the CO (sub 2) plume or in overlying zones caused by vertical leakage of brine or CO (sub 2) Hundreds of newspaper articles regarding groundwater contamination in the main newspaper in the southern San Joaquin area collectively reported on effects on groundwater from tens of sources at tens of locations. These effects resulted in the closure of about 100 water supply wells. However, no effects caused by upward migration of brine were reported. Of the shallowest zones with oil production-related activity in each field, the Fruitvale field, Main area, Etchegoin pool had the largest cumulative net injection volume. This pool is also intersected by numerous faults and approximately 900 wells related to oil production, each providing a potential pathway for upward fluid migration. Total dissolved solids and nitrate concentration data are available from greater than 100 water supply wells overlying this pool. Analysis of these data determined there was no significant groundwater quality change likely attributable to upward migration of brine (p < 0.05). It is not known if this is because the application of current underground injection control regulations is effective or because upward migration of brine, which is a dense phase, to groundwater is unlikely. The different engineering and economic implications of these two hypotheses suggest the need for future work to ascertain which is correct under different conditions. JF - Environmental Geosciences AU - Jordan, Preston D AU - Gillespie, Janice Y1 - 2016 PY - 2016 DA - 2016 SP - 141 EP - 177 PB - American Association of Petroleum Geologists (AAPG), Division of Environmental Geosciences, Tulsa, OK VL - 23 IS - 3 SN - 1075-9565, 1075-9565 KW - United States KW - water quality KW - lithostratigraphy KW - plumes KW - contaminant plumes KW - environmental analysis KW - seepage KW - oil and gas fields KW - reservoir rocks KW - ground water KW - carbon dioxide KW - Cenozoic KW - California KW - Kern County California KW - nitrate ion KW - concentration KW - water supply KW - monitoring KW - San Joaquin Valley KW - pressure KW - Fruitvale Field KW - injection KW - solutes KW - pollution KW - enhanced recovery KW - migration of elements KW - Bakersfield California KW - aquifers KW - Tertiary KW - Etchegoin Formation KW - Neogene KW - brines KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840622008?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geosciences&rft.atitle=Produced+water+disposal+injection+in+the+southern+San+Joaquin+Valley%3B+no+evidence+of+groundwater+quality+effects+due+to+upward+leakage&rft.au=Jordan%2C+Preston+D%3BGillespie%2C+Janice&rft.aulast=Jordan&rft.aufirst=Preston&rft.date=2016-01-01&rft.volume=23&rft.issue=3&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Environmental+Geosciences&rft.issn=10759565&rft_id=info:doi/10.1306%2Feg.10131515012 L2 - http://www.ingentaconnect.com/content/bsc/ege LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 13 N1 - PubXState - OK N1 - Document feature - illus. incl. 2 tables, geol. sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - aquifers; Bakersfield California; brines; California; carbon dioxide; Cenozoic; concentration; contaminant plumes; enhanced recovery; environmental analysis; Etchegoin Formation; Fruitvale Field; ground water; injection; Kern County California; lithostratigraphy; migration of elements; monitoring; Neogene; nitrate ion; oil and gas fields; plumes; pollution; pressure; reservoir rocks; San Joaquin Valley; seepage; solutes; Tertiary; United States; water quality; water supply DO - http://dx.doi.org/10.1306/eg.10131515012 ER - TY - JOUR T1 - Regional crustal-scale structures as conduits for deep geothermal upflow AN - 1840620297; 2016-095717 AB - Geothermal fluids produced from two of the largest production geothermal fields in the Great Basin have helium isotope ratios that are anomalously high relative to basin-wide trends. These data indicate that the geothermal systems, Dixie Valley, Nevada and McGinness Hills, Nevada have an anomalously high fraction of mantle derived fluid. These connections to deeply derived fluid and heat may supplement crustal heat production and be responsible, in part, for the anomalously high production capacity, relative to other Great Basin geothermal fields, that Dixie Valley and McGinness Hills support. Deep-seated crustal structures across the Great Basin and around the world are known to be associated with structural reactivation, can have relatively high permeability, and can act as fluid flow conduits. These deep seated structures across the Great Basin control upflow of deeply derived heat and fluids into the shallow geothermal systems at Dixie Valley and McGinness Hills, contributing to their productivity. Abstract Copyright (2016) Elsevier, B.V. JF - Geothermics AU - Siler, Drew L AU - Kennedy, B Mack Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 27 EP - 37 PB - Elsevier, Oxford-New York VL - 59 IS - PART A SN - 0375-6505, 0375-6505 KW - United States KW - McGinness Hills KW - Churchill County Nevada KW - Basin and Range Province KW - isotopes KW - mantle KW - Dixie Valley Field KW - stable isotopes KW - Dixie Valley KW - deep-seated structures KW - noble gases KW - helium KW - Nevada KW - North America KW - isotope ratios KW - Great Basin KW - fluid flow KW - porosity KW - geothermal energy KW - geothermal fields KW - geothermal exploration KW - McGinness Hills Field KW - geochemical methods KW - reservoir properties KW - He-4/He-3 KW - permeability KW - crust KW - 18:Solid-earth geophysics KW - 29A:Economic geology, geology of energy sources KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840620297?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geothermics&rft.atitle=Regional+crustal-scale+structures+as+conduits+for+deep+geothermal+upflow&rft.au=Siler%2C+Drew+L%3BKennedy%2C+B+Mack&rft.aulast=Siler&rft.aufirst=Drew&rft.date=2016-01-01&rft.volume=59&rft.issue=PART+A&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=Geothermics&rft.issn=03756505&rft_id=info:doi/10.1016%2Fj.geothermics.2015.10.007 L2 - http://www.sciencedirect.com/science/journal/03756505 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 116 N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2016-11-17 N1 - CODEN - GTMCAT N1 - SubjectsTermNotLitGenreText - Basin and Range Province; Churchill County Nevada; crust; deep-seated structures; Dixie Valley; Dixie Valley Field; fluid flow; geochemical methods; geothermal energy; geothermal exploration; geothermal fields; Great Basin; He-4/He-3; helium; isotope ratios; isotopes; mantle; McGinness Hills; McGinness Hills Field; Nevada; noble gases; North America; permeability; porosity; reservoir properties; stable isotopes; United States DO - http://dx.doi.org/10.1016/j.geothermics.2015.10.007 ER - TY - JOUR T1 - Effect of paleoseawater composition on hydrothermal exchange at mid-ocean ridges AN - 1832729137; 2016-090137 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Antonelli, Michael A AU - DePaolo, Donald J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 82 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 KW - sorosilicates KW - silicates KW - calcium KW - anhydrite KW - sea water KW - isotopes KW - Cretaceous KW - paleo-oceanography KW - simulation KW - stable isotopes KW - temperature KW - carbon dioxide KW - partitioning KW - Ordovician KW - epidote KW - transport KW - quantitative analysis KW - orthosilicates KW - composition KW - reactive transport KW - ocean floors KW - chemical composition KW - kinetics KW - alkaline earth metals KW - sulfate ion KW - sulfates KW - Paleozoic KW - isotope ratios KW - ophiolite KW - effects KW - porosity KW - Mesozoic KW - models KW - Sr-87/Sr-86 KW - Ca-44/Ca-40 KW - precipitation KW - metals KW - reconstruction KW - epidote group KW - weathering rates KW - strontium KW - mid-ocean ridges KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832729137?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Effect+of+paleoseawater+composition+on+hydrothermal+exchange+at+mid-ocean+ridges&rft.au=Antonelli%2C+Michael+A%3BDePaolo%2C+Donald+J%3BAnonymous&rft.aulast=Antonelli&rft.aufirst=Michael&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=82&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/82.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 4 N1 - Last updated - 2016-10-27 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; anhydrite; Ca-44/Ca-40; calcium; carbon dioxide; chemical composition; composition; Cretaceous; effects; epidote; epidote group; isotope ratios; isotopes; kinetics; Mesozoic; metals; mid-ocean ridges; models; ocean floors; ophiolite; Ordovician; orthosilicates; paleo-oceanography; Paleozoic; partitioning; porosity; precipitation; quantitative analysis; reactive transport; reconstruction; sea water; silicates; simulation; sorosilicates; Sr-87/Sr-86; stable isotopes; strontium; sulfate ion; sulfates; temperature; transport; weathering rates ER - TY - JOUR T1 - Large Ca isotope fractionation in granulite facies minerals AN - 1832728616; 2016-090138 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Antonelli, Michael A AU - DePaolo, Donald J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 83 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 KW - silicates KW - granulite facies KW - calcium KW - isotope fractionation KW - volcanic rocks KW - oxygen KW - isotopes KW - igneous rocks KW - coordination KW - garnet group KW - mafic composition KW - crystal growth KW - bonding KW - stable isotopes KW - pyroxene group KW - mineral composition KW - clinopyroxene KW - inclusions KW - orthosilicates KW - cooling KW - framework silicates KW - kinetics KW - xenoliths KW - P-T conditions KW - chain silicates KW - alkaline earth metals KW - plagioclase KW - diffusion KW - textures KW - isotope ratios KW - rates KW - measurement KW - nesosilicates KW - Ca-44/Ca-40 KW - metals KW - orthopyroxene KW - feldspar group KW - phenocrysts KW - minerals KW - facies KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832728616?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Large+Ca+isotope+fractionation+in+granulite+facies+minerals&rft.au=Antonelli%2C+Michael+A%3BDePaolo%2C+Donald+J%3BAnonymous&rft.aulast=Antonelli&rft.aufirst=Michael&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=83&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/83.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 6 N1 - Last updated - 2016-10-27 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; bonding; Ca-44/Ca-40; calcium; chain silicates; clinopyroxene; cooling; coordination; crystal growth; diffusion; facies; feldspar group; framework silicates; garnet group; granulite facies; igneous rocks; inclusions; isotope fractionation; isotope ratios; isotopes; kinetics; mafic composition; measurement; metals; mineral composition; minerals; nesosilicates; orthopyroxene; orthosilicates; oxygen; P-T conditions; phenocrysts; plagioclase; pyroxene group; rates; silicates; stable isotopes; textures; volcanic rocks; xenoliths ER - TY - JOUR T1 - Genome-informed reactive transport simulations of CO (sub 2) and carbon isotope dynamics in a flood plain aquifer AN - 1832686507; 782747-8 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Arora, Bhavna AU - King, E L AU - Spycher, N F AU - Steefel, C I AU - Conrad, M E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 108 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 KW - United States KW - Garfield County Colorado KW - isotopes KW - floodplains KW - unsaturated zone KW - mechanism KW - simulation KW - stable isotopes KW - ground water KW - carbon dioxide KW - Colorado River KW - Rifle Colorado KW - transport KW - carbon KW - reactive transport KW - soils KW - isotope ratios KW - biochemistry KW - C-13/C-12 KW - genome KW - two-dimensional models KW - geochemical cycle KW - aquifers KW - fluvial features KW - seasonal variations KW - Colorado KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832686507?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Genome-informed+reactive+transport+simulations+of+CO+%28sub+2%29+and+carbon+isotope+dynamics+in+a+flood+plain+aquifer&rft.au=Arora%2C+Bhavna%3BKing%2C+E+L%3BSpycher%2C+N+F%3BSteefel%2C+C+I%3BConrad%2C+M+E%3BAnonymous&rft.aulast=Arora&rft.aufirst=Bhavna&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=108&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/108.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - aquifers; biochemistry; C-13/C-12; carbon; carbon dioxide; Colorado; Colorado River; floodplains; fluvial features; Garfield County Colorado; genome; geochemical cycle; ground water; isotope ratios; isotopes; mechanism; reactive transport; Rifle Colorado; seasonal variations; simulation; soils; stable isotopes; transport; two-dimensional models; United States; unsaturated zone ER - TY - JOUR T1 - Climate feedbacks on the cycling of carbon dioxide, nitrous oxide, sulfur, and methane on a semi-arid floodplain AN - 1832686093; 782748-35 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Bill, Markus AU - Conrad, Mark E AU - Tokunaga, Tetsu K AU - Hobson, Chad AU - Williams, Kenneth H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 235 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832686093?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Climate+feedbacks+on+the+cycling+of+carbon+dioxide%2C+nitrous+oxide%2C+sulfur%2C+and+methane+on+a+semi-arid+floodplain&rft.au=Bill%2C+Markus%3BConrad%2C+Mark+E%3BTokunaga%2C+Tetsu+K%3BHobson%2C+Chad%3BWilliams%2C+Kenneth+H%3BAnonymous&rft.aulast=Bill&rft.aufirst=Markus&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=235&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/235.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - DOM complexation of Fe(II) and its effect on Fe(II) stability under oxic conditions AN - 1832686014; 782748-69 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Borch, Thomas AU - Daugherty, Ellen AU - Nico, Peter AU - Gilbert, Benjamin AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 269 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832686014?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=DOM+complexation+of+Fe%28II%29+and+its+effect+on+Fe%28II%29+stability+under+oxic+conditions&rft.au=Borch%2C+Thomas%3BDaugherty%2C+Ellen%3BNico%2C+Peter%3BGilbert%2C+Benjamin%3BAnonymous&rft.aulast=Borch&rft.aufirst=Thomas&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=269&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/269.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Nanoscale petrographic and geochemical insights on the origin of the Palaeoproterozoic stromatolitic phosphorites from Aravalli Supergroup, India AN - 1832681796; 769334-1 AB - Stromatolites composed of apatite occur in post-Lomagundi-Jatuli successions (late Palaeoproterozoic) and suggest the emergence of novel types of biomineralization at that time. The microscopic and nanoscopic petrology of organic matter in stromatolitic phosphorites might provide insights into the suite of diagenetic processes that formed these types of stromatolites. Correlated geochemical micro-analyses of the organic matter could also yield molecular, elemental and isotopic compositions and thus insights into the role of specific micro-organisms among these communities. Here, we report on the occurrence of nanoscopic disseminated organic matter in the Palaeoproterozoic stromatolitic phosphorite from the Aravalli Supergroup of north-west India. Organic petrography by micro-Raman and Transmission Electron Microscopy demonstrates syngeneity of the organic matter. Total organic carbon contents of these stromatolitic phosphorite columns are between 0.05 and 3.0 wt% and have a large range of delta (super 13) C (sub org) values with an average of -18.5 ppm (1sigma = 4.5 ppm). delta (super 15) N values of decarbonated rock powders are between -1.2 and +2.7 ppm. These isotopic compositions point to the important role of biological N (sub 2) -fixation and CO (sub 2) -fixation by the pentose phosphate pathway consistent with a population of cyanobacteria. Microscopic spheroidal grains of apatite (MSGA) occur in association with calcite microspar in microbial mats from stromatolite columns and with chert in the core of diagenetic apatite rosettes. Organic matter extracted from the stromatolitic phosphorites contains a range of molecular functional group (e.g. carboxylic acid, alcohol, and aliphatic hydrocarbons) as well as nitrile and nitro groups as determined from C- and N-XANES spectra. The presence of organic nitrogen was independently confirmed by a CN (super -) peak detected by ToF-SIMS. Nanoscale petrography and geochemistry allow for a refinement of the formation model for the accretion and phototrophic growth of stromatolites. The original microbial biomass is inferred to have been dominated by cyanobacteria, which might be an important contributor of organic matter in shallow-marine phosphorites. Abstract Copyright (2010), John Wiley & Sons, Ltd. JF - Geobiology AU - Papineau, D AU - De Gregorio, B AU - Fearn, S AU - Kilcoyne, D AU - McMahon, G AU - Purohit, R AU - Fogel, M Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 3 EP - 32 PB - Wiley, Oxford VL - 14 IS - 1 SN - 1472-4677, 1472-4677 KW - Udaipur India KW - Aravalli System KW - upper Precambrian KW - Jhamarkotra Formation KW - isotopes KW - Paleoproterozoic KW - mass spectra KW - microbial mats KW - Badagaon India KW - stable isotopes KW - nitrogen KW - India KW - XANES spectra KW - sedimentary rocks KW - Indian Peninsula KW - carbon KW - taphonomy KW - Archean KW - spectra KW - chemical composition KW - Asia KW - sedimentary structures KW - phosphate rocks KW - chemically precipitated rocks KW - N-15/N-14 KW - Precambrian KW - isotope ratios KW - biogenic structures KW - C-13/C-12 KW - Proterozoic KW - electron microscopy data KW - X-ray spectra KW - TEM data KW - Rajasthan India KW - geochemical cycle KW - stromatolites KW - nitrogen cycle KW - X-ray data KW - Raman spectra KW - diagenesis KW - petrography KW - carbon cycle KW - SEM data KW - 06A:Sedimentary petrology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832681796?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geobiology&rft.atitle=Nanoscale+petrographic+and+geochemical+insights+on+the+origin+of+the+Palaeoproterozoic+stromatolitic+phosphorites+from+Aravalli+Supergroup%2C+India&rft.au=Papineau%2C+D%3BDe+Gregorio%2C+B%3BFearn%2C+S%3BKilcoyne%2C+D%3BMcMahon%2C+G%3BPurohit%2C+R%3BFogel%2C+M&rft.aulast=Papineau&rft.aufirst=D&rft.date=2016-01-01&rft.volume=14&rft.issue=1&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Geobiology&rft.issn=14724677&rft_id=info:doi/10.1111%2Fgbi.12164 L2 - http://www.blackwellpublishing.com/journal.asp?ref=1472-4677 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Number of references - 126 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - Aravalli System; Archean; Asia; Badagaon India; biogenic structures; C-13/C-12; carbon; carbon cycle; chemical composition; chemically precipitated rocks; diagenesis; electron microscopy data; geochemical cycle; India; Indian Peninsula; isotope ratios; isotopes; Jhamarkotra Formation; mass spectra; microbial mats; N-15/N-14; nitrogen; nitrogen cycle; Paleoproterozoic; petrography; phosphate rocks; Precambrian; Proterozoic; Rajasthan India; Raman spectra; sedimentary rocks; sedimentary structures; SEM data; spectra; stable isotopes; stromatolites; taphonomy; TEM data; Udaipur India; upper Precambrian; X-ray data; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1111/gbi.12164 ER - TY - JOUR T1 - Calorimetric study of binding interactions between metal ions and natural organic matter AN - 1832670191; 782760-100 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Kim, E -j AU - Gilbert, B AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1500 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832670191?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Calorimetric+study+of+binding+interactions+between+metal+ions+and+natural+organic+matter&rft.au=Kim%2C+E+-j%3BGilbert%2C+B%3BAnonymous&rft.aulast=Kim&rft.aufirst=E&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1500&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1500.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - STXM-XANES analysis or organic matter in dark clasts and halite crystals in Zag and Monahans Meteorites AN - 1832668048; 777410-52 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kebukawa, Y AU - Zolensky, M E AU - Fries, M AU - Nakato, A AU - Kilcoyne, A L D AU - Takeichi, Y AU - Suga, H AU - Miyamoto, C AU - Rahman, Z AU - Kobayashi, K AU - Mase, K AU - Takahashi, Y AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 1802 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - Zag Meteorite KW - halides KW - ordinary chondrites KW - stony meteorites KW - oxygen KW - Ceres KW - asteroids KW - scanning transmission X-ray microscopy KW - H chondrites KW - clasts KW - X-ray spectra KW - halite KW - dwarf planets KW - nitrogen KW - XANES spectra KW - meteorites KW - organic compounds KW - Monahans Meteorite KW - carbon KW - Hebe Asteroid KW - chlorides KW - spectra KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832668048?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=STXM-XANES+analysis+or+organic+matter+in+dark+clasts+and+halite+crystals+in+Zag+and+Monahans+Meteorites&rft.au=Kebukawa%2C+Y%3BZolensky%2C+M+E%3BFries%2C+M%3BNakato%2C+A%3BKilcoyne%2C+A+L+D%3BTakeichi%2C+Y%3BSuga%2C+H%3BMiyamoto%2C+C%3BRahman%2C+Z%3BKobayashi%2C+K%3BMase%2C+K%3BTakahashi%2C+Y%3BAnonymous&rft.aulast=Kebukawa&rft.aufirst=Y&rft.date=2016-01-01&rft.volume=47&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2016/pdf/1802.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; carbon; Ceres; chlorides; chondrites; clasts; dwarf planets; H chondrites; halides; halite; Hebe Asteroid; meteorites; Monahans Meteorite; nitrogen; ordinary chondrites; organic compounds; oxygen; scanning transmission X-ray microscopy; spectra; stony meteorites; X-ray spectra; XANES spectra; Zag Meteorite ER - TY - JOUR T1 - Diagnostic and model dependent uncertainty of simulated Tibetan permafrost area AN - 1832652729; 781527-73 JF - International Conference on Permafrost - Book of Abstracts AU - Wang, Wenli AU - Rinke, Annette AU - Moore, John C AU - Cui, Xuefeng AU - Ji, Duoying AU - Li, Qian AU - Zhang, Ningning AU - Wang, Chenghai AU - Zhang, Shiqiang AU - Lawrence, David M AU - McGuire, A David AU - Zhang, Wenxin AU - Delire, Christine AU - Koven, Charles AU - Saito, Kazuyuki AU - MacDougall, Andrew AU - Burke, Eleanor AU - Decharme, Bertrand AU - Polakowski, Lydia AU - Fuchs, Matthias AU - Nitze, Ingmar AU - Stettner, Samuel AU - Lantuit, Hugues AU - Grosse, Guido Y1 - 2016 PY - 2016 DA - 2016 SP - 1092 EP - 1093 PB - [publisher varies], [location varies] VL - 11 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832652729?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.atitle=Diagnostic+and+model+dependent+uncertainty+of+simulated+Tibetan+permafrost+area&rft.au=Wang%2C+Wenli%3BRinke%2C+Annette%3BMoore%2C+John+C%3BCui%2C+Xuefeng%3BJi%2C+Duoying%3BLi%2C+Qian%3BZhang%2C+Ningning%3BWang%2C+Chenghai%3BZhang%2C+Shiqiang%3BLawrence%2C+David+M%3BMcGuire%2C+A+David%3BZhang%2C+Wenxin%3BDelire%2C+Christine%3BKoven%2C+Charles%3BSaito%2C+Kazuyuki%3BMacDougall%2C+Andrew%3BBurke%2C+Eleanor%3BDecharme%2C+Bertrand%3BPolakowski%2C+Lydia%3BFuchs%2C+Matthias%3BNitze%2C+Ingmar%3BStettner%2C+Samuel%3BLantuit%2C+Hugues%3BGrosse%2C+Guido&rft.aulast=Wang&rft.aufirst=Wenli&rft.date=2016-01-01&rft.volume=11&rft.issue=&rft.spage=1092&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 2 N1 - Last updated - 2017-01-24 N1 - CODEN - #07985 ER - TY - JOUR T1 - The temporal evolution of changes in carbon storage in the northern permafrost region simulated by carbon cycle models between 2010 and 2300; implications for atmospheric carbon dynamics AN - 1832648934; 781050-9 JF - International Conference on Permafrost - Book of Abstracts AU - McGuire, A David AU - Lawrence, David AU - Burke, Eleanor AU - Chen, Guangsheng AU - Jafarov, Elchin AU - Koven, Charles AU - MacDougall, Andrew AU - Nicolsky, Dmitry AU - Peng, Shushi AU - Ji, Duoying Y1 - 2016 PY - 2016 DA - 2016 SP - 228 PB - [publisher varies], [location varies] VL - 11 KW - permafrost KW - degradation KW - carbon sequestration KW - Arctic region KW - prediction KW - thawing KW - climate change KW - geochemical cycle KW - models KW - carbon KW - climate effects KW - carbon cycle KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832648934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.atitle=The+temporal+evolution+of+changes+in+carbon+storage+in+the+northern+permafrost+region+simulated+by+carbon+cycle+models+between+2010+and+2300%3B+implications+for+atmospheric+carbon+dynamics&rft.au=McGuire%2C+A+David%3BLawrence%2C+David%3BBurke%2C+Eleanor%3BChen%2C+Guangsheng%3BJafarov%2C+Elchin%3BKoven%2C+Charles%3BMacDougall%2C+Andrew%3BNicolsky%2C+Dmitry%3BPeng%2C+Shushi%3BJi%2C+Duoying&rft.aulast=McGuire&rft.aufirst=A&rft.date=2016-01-01&rft.volume=11&rft.issue=&rft.spage=228&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh international conference on Permafrost; exploring permafrost in a future Earth N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #07985 N1 - SubjectsTermNotLitGenreText - Arctic region; carbon; carbon cycle; carbon sequestration; climate change; climate effects; degradation; geochemical cycle; models; permafrost; prediction; thawing ER - TY - JOUR T1 - The structure of nacre in Jurassic Pinna shells AN - 1832647599; 782755-43 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Gilbert, Pupa U P A AU - Giuffre, Anthony J AU - Bergmann, Kristin D AU - Myers, Corinne E AU - Marcus, Matthew A AU - Devol, Ross T AU - Sun, Chang-Yu AU - Blonsky, A Z AU - Zhao, Jessica AU - Karan, Elizabeth A AU - Tamre, Erik AU - Tamura, Nobumichi AU - Lemer, Sarah AU - Giribet, Gonzalo AU - Eiler, John M AU - Knoll, Andrew AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 943 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832647599?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=The+structure+of+nacre+in+Jurassic+Pinna+shells&rft.au=Gilbert%2C+Pupa+U+P+A%3BGiuffre%2C+Anthony+J%3BBergmann%2C+Kristin+D%3BMyers%2C+Corinne+E%3BMarcus%2C+Matthew+A%3BDevol%2C+Ross+T%3BSun%2C+Chang-Yu%3BBlonsky%2C+A+Z%3BZhao%2C+Jessica%3BKaran%2C+Elizabeth+A%3BTamre%2C+Erik%3BTamura%2C+Nobumichi%3BLemer%2C+Sarah%3BGiribet%2C+Gonzalo%3BEiler%2C+John+M%3BKnoll%2C+Andrew%3BAnonymous&rft.aulast=Gilbert&rft.aufirst=Pupa+U+P&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=943&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/943.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Envirnomental genomics of Fervidibacteria, a "microbial coelacanth" from a hot, primitive Earth? AN - 1832646008; 782756-94 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Hedlund, Brian P AU - Dodsworth, Jeremy A AU - Murugapiran, Senthil K AU - Jarett, Jessica AU - Ivanova, Natalia AU - Devlaminck, Iwijn AU - Quake, Stephen AU - Li, Wen-Jun AU - Woyke, Tanja AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1094 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832646008?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Envirnomental+genomics+of+Fervidibacteria%2C+a+%22microbial+coelacanth%22+from+a+hot%2C+primitive+Earth%3F&rft.au=Hedlund%2C+Brian+P%3BDodsworth%2C+Jeremy+A%3BMurugapiran%2C+Senthil+K%3BJarett%2C+Jessica%3BIvanova%2C+Natalia%3BDevlaminck%2C+Iwijn%3BQuake%2C+Stephen%3BLi%2C+Wen-Jun%3BWoyke%2C+Tanja%3BAnonymous&rft.aulast=Hedlund&rft.aufirst=Brian&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1094&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1094.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Complementary Microscopies on Atmospheric Aerosols AN - 1832645869; 782755-45 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Mary K, Gilles AU - Laskin, Alexander AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 945 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832645869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Complementary+Microscopies+on+Atmospheric+Aerosols&rft.au=Mary+K%2C+Gilles%3BLaskin%2C+Alexander%3BAnonymous&rft.aulast=Mary+K&rft.aufirst=Gilles&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=945&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/945.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Simulated high-latitude soil thermal dynamics during the past 4 decades AN - 1832642233; 768956-12 AB - Soil temperature (T (sub s) ) change is a key indicator of the dynamics of permafrost. On seasonal and interannual timescales, the variability of T (sub s) determines the active-layer depth, which regulates hydrological soil properties and biogeochemical processes. On the multi-decadal scale, increasing T (sub s) not only drives permafrost thaw/retreat but can also trigger and accelerate the decomposition of soil organic carbon. The magnitude of permafrost carbon feedbacks is thus closely linked to the rate of change of soil thermal regimes. In this study, we used nine process-based ecosystem models with permafrost processes, all forced by different observation-based climate forcing during the period 1960-2000, to characterize the warming rate of T (sub s) in permafrost regions. There is a large spread of T (sub s) trends at 20 cm depth across the models, with trend values ranging from 0.010 + or - 0.003 to 0.031 + or - 0.005 degrees C yr (super -1) . Most models show smaller increase in T (sub s) with increasing depth. Air temperature (Tsub (super a) ) and longwave downward radiation (LWDR) are the main drivers of T (sub s) trends, but their relative contributions differ amongst the models. Different trends of LWDR used in the forcing of models can explain 61 % of their differences in T (sub s) trends, while trends of T (sub a) only explain 5 % of the differences in T (sub s) trends. Uncertain climate forcing contributes a larger uncertainty in T (sub s) trends (0.021 + or - 0.008 degrees C yr (super -1) , mean + or - standard deviation) than the uncertainty of model structure (0.012 + or - 0.001 degrees C yr (super -1) ), diagnosed from the range of response between different models, normalized to the same forcing. In addition, the loss rate of near-surface permafrost area, defined as total area where the maximum seasonal active-layer thickness (ALT) is less than 3 m loss rate, is found to be significantly correlated with the magnitude of the trends of T (sub s) at 1 m depth across the models (R = -0.85, P = 0.003), but not with the initial total near-surface permafrost area (R = -0.30, P = 0.438). The sensitivity of the total boreal near-surface permafrost area to T (sub s) at 1 m is estimated to be of -2.80 + or - 0.67 million km (super 2) degrees C (super -1) . Finally, by using two long-term LWDR data sets and relationships between trends of LWDR and T (sub s) across models, we infer an observation-constrained total boreal near-surface permafrost area decrease comprising between 39 + or - 14 X 10 (super 3) and 75 + or - 14 X 10 (super 3) km (super 2) yr (super -1) from 1960 to 2000. This corresponds to 9-18 % degradation of the current permafrost area. JF - The Cryosphere (Online) AU - Peng, S AU - Ciais, P AU - Krinner, G AU - Wang, T AU - Gouttevin, I AU - McGuire, A D AU - Lawrence, D AU - Burke, E AU - Chen, X AU - Decharme, B AU - Koven, C AU - MacDougall, A AU - Rinke, A AU - Saito, K AU - Zhang, W AU - Alkama, R AU - Bohn, T J AU - Delire, C AU - Hajima, T AU - Ji, D AU - Lettenmaier, D P AU - Miller, P A AU - Moore, J C AU - Smith, B AU - Sueyoshi, T Y1 - 2016 PY - 2016 DA - 2016 SP - 179 EP - 192 PB - Copernicus on behalf of the European Geosciences Union, Katlenburg-Lindau VL - 10 IS - 1 KW - decadal variations KW - terrestrial environment KW - permafrost KW - degradation KW - factor analysis KW - mechanism KW - ecosystems KW - thermal regime KW - simulation KW - Holocene KW - climate change KW - temperature KW - feedback KW - Cenozoic KW - spatial distribution KW - dynamics KW - sensitivity analysis KW - trend-surface analysis KW - ground-surface temperature KW - climate forcing KW - uncertainty KW - soils KW - processes KW - monthly variations KW - Quaternary KW - annual variations KW - thermal properties KW - statistical analysis KW - depth KW - boreal environment KW - models KW - regional KW - solar radiation KW - air KW - seasonal variations KW - latitude KW - upper Holocene KW - active layer KW - 24:Quaternary geology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832642233?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Cryosphere+%28Online%29&rft.atitle=Simulated+high-latitude+soil+thermal+dynamics+during+the+past+4+decades&rft.au=Peng%2C+S%3BCiais%2C+P%3BKrinner%2C+G%3BWang%2C+T%3BGouttevin%2C+I%3BMcGuire%2C+A+D%3BLawrence%2C+D%3BBurke%2C+E%3BChen%2C+X%3BDecharme%2C+B%3BKoven%2C+C%3BMacDougall%2C+A%3BRinke%2C+A%3BSaito%2C+K%3BZhang%2C+W%3BAlkama%2C+R%3BBohn%2C+T+J%3BDelire%2C+C%3BHajima%2C+T%3BJi%2C+D%3BLettenmaier%2C+D+P%3BMiller%2C+P+A%3BMoore%2C+J+C%3BSmith%2C+B%3BSueyoshi%2C+T&rft.aulast=Peng&rft.aufirst=S&rft.date=2016-01-01&rft.volume=10&rft.issue=1&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=The+Cryosphere+%28Online%29&rft.issn=1994-0424&rft_id=info:doi/ L2 - http://www.the-cryosphere.net/10/179/2016/tc-10-179-2016.pdf http://www.the-cryosphere.net/volumes_and_issues.html LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Number of references - 66 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - active layer; air; annual variations; boreal environment; Cenozoic; climate change; climate forcing; decadal variations; degradation; depth; dynamics; ecosystems; factor analysis; feedback; ground-surface temperature; Holocene; latitude; mechanism; models; monthly variations; permafrost; processes; Quaternary; regional; seasonal variations; sensitivity analysis; simulation; soils; solar radiation; spatial distribution; statistical analysis; temperature; terrestrial environment; thermal properties; thermal regime; trend-surface analysis; uncertainty; upper Holocene ER - TY - JOUR T1 - Laboratory measurements of guided-wave propagation within a fluid-saturated fracture AN - 1832633542; 769264-14 AB - A fluid-saturated flat channel between solids, such as a fracture, is known to support guided waves-sometimes called Krauklis waves. At low frequencies, Krauklis waves can have very low velocity and large attenuation and are very dispersive. Because they propagate primarily within the fluid channel formed by a fracture, Krauklis waves can potentially be used for geological fracture characterization in the field. Using an analogue fracture consisting of a pair of flat slender plates with a mediating fluid layer-a trilayer model-we conducted laboratory measurements of the velocity and attenuation of Krauklis waves. Unlike previous experiments using ultrasonic waves, these experiments used frequencies well below 1 kHz, resulting in extremely low velocity and large attenuation of the waves. The mechanical compliance of the fracture was varied by modifying the stiffness of the fluid seal of the physical fracture model, and proppant (fracture-filling high-permeability sand) was also introduced into the fracture to examine its impact on wave propagation. A theoretical frequency equation for the trilayer model was derived using the poroelastic linear-slip interface model, and its solutions were compared to the experimental results. Abstract Copyright (2015), European Association of Geoscientists & Engineers. JF - Geophysical Prospecting AU - Nakagawa, Seiji AU - Nakashima, Shinichiro AU - Korneev, Valeri A Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 143 EP - 156 PB - Blackwell on behalf of the European Association of Geoscientists & Engineers (EAGE), Houten VL - 64 IS - 1 SN - 0016-8025, 0016-8025 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832633542?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Prospecting&rft.atitle=Laboratory+measurements+of+guided-wave+propagation+within+a+fluid-saturated+fracture&rft.au=Nakagawa%2C+Seiji%3BNakashima%2C+Shinichiro%3BKorneev%2C+Valeri+A&rft.aulast=Nakagawa&rft.aufirst=Seiji&rft.date=2016-01-01&rft.volume=64&rft.issue=1&rft.spage=143&rft.isbn=&rft.btitle=&rft.title=Geophysical+Prospecting&rft.issn=00168025&rft_id=info:doi/10.1111%2F1365-2478.12223 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Last updated - 2017-01-24 N1 - CODEN - GPPRAR DO - http://dx.doi.org/10.1111/1365-2478.12223 ER - TY - JOUR T1 - STXM-NEXAFS and fs LA-ICP-MS Investigations of Rock Varnish AN - 1832616465; 782765-39 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Macholdt, D S AU - Poehlker, C AU - Foerster, J D AU - Weber, B AU - Kilcoyne, A L D AU - Weigand, M AU - Mueller, M AU - Lieberwirth, I AU - Jochum, K P AU - Kappl, M AU - Haug, G AU - Andreae, M O AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1939 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832616465?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=STXM-NEXAFS+and+fs+LA-ICP-MS+Investigations+of+Rock+Varnish&rft.au=Macholdt%2C+D+S%3BPoehlker%2C+C%3BFoerster%2C+J+D%3BWeber%2C+B%3BKilcoyne%2C+A+L+D%3BWeigand%2C+M%3BMueller%2C+M%3BLieberwirth%2C+I%3BJochum%2C+K+P%3BKappl%2C+M%3BHaug%2C+G%3BAndreae%2C+M+O%3BAnonymous&rft.aulast=Macholdt&rft.aufirst=D&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1939&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1939.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - The metal resistome of an environmental bacterium AN - 1832608040; 782764-37 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Liu, Hualan AU - Carlson, Hans K AU - Price, Morgan N AU - Deutschbauer, Adam M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1837 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832608040?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=The+metal+resistome+of+an+environmental+bacterium&rft.au=Liu%2C+Hualan%3BCarlson%2C+Hans+K%3BPrice%2C+Morgan+N%3BDeutschbauer%2C+Adam+M%3BAnonymous&rft.aulast=Liu&rft.aufirst=Hualan&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1837&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1837.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Impeding 99 Tc(IV) mobility in novel waste forms AN - 1832605918; 782763-7 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Lee, Mal-Soon AU - Wooyong, U M AU - Wang, Guohui AU - Kruger, Albert A AU - Lukens, Wayne W AU - Rousseau, Roger AU - Glezakou, Vassiliki-Alexandra AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1707 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605918?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Impeding+99+Tc%28IV%29+mobility+in+novel+waste+forms&rft.au=Lee%2C+Mal-Soon%3BWooyong%2C+U+M%3BWang%2C+Guohui%3BKruger%2C+Albert+A%3BLukens%2C+Wayne+W%3BRousseau%2C+Roger%3BGlezakou%2C+Vassiliki-Alexandra%3BAnonymous&rft.aulast=Lee&rft.aufirst=Mal-Soon&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1707&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1707.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - pH-dependent photoreduction of d-MnO2 AN - 1832603370; 782765-69 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Marafatto, F F AU - Schwartzberg, A AU - Gilbert, B AU - Pena, J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1969 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832603370?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=pH-dependent+photoreduction+of+d-MnO2&rft.au=Marafatto%2C+F+F%3BSchwartzberg%2C+A%3BGilbert%2C+B%3BPena%2C+J%3BAnonymous&rft.aulast=Marafatto&rft.aufirst=F&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1969&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1969.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Molecular dynamics simulations of cesium adsorption on illite AN - 1832601894; 782762-67 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Lammers, Laura N AU - Bourg, Ian C AU - Okumura, Masahiko AU - Kolluri, Kedarnath AU - Sposito, Garrison AU - Machida, Masahiko AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1667 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832601894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Molecular+dynamics+simulations+of+cesium+adsorption+on+illite&rft.au=Lammers%2C+Laura+N%3BBourg%2C+Ian+C%3BOkumura%2C+Masahiko%3BKolluri%2C+Kedarnath%3BSposito%2C+Garrison%3BMachida%2C+Masahiko%3BAnonymous&rft.aulast=Lammers&rft.aufirst=Laura&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1667&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1667.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Monitoring and quantifying soil processes and interaction with vegetation and landscape properties in Arctic tundra using above- and below-ground imaging AN - 1828845499; 2016-088019 JF - International Conference on Permafrost - Book of Abstracts AU - Dafflon, Baptiste AU - Tran, Anh P AU - Peterson, John AU - Oktem, Rusen AU - Ulrich, Craig AU - Wainwright, Haruko AU - Curtis, John B AU - Torn, Margaret AU - Hubbard, Susan Y1 - 2016 PY - 2016 DA - 2016 SP - 957 EP - 958 PB - [publisher varies], [location varies] VL - 11 KW - United States KW - hydrology KW - land cover KW - permafrost KW - degradation KW - snow cover KW - biochemistry KW - Arctic region KW - Barrow Quadrangle KW - vegetation KW - thawing KW - climate change KW - Barrow Alaska KW - temperature KW - snow KW - climate effects KW - Alaska KW - landscapes KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828845499?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.atitle=Monitoring+and+quantifying+soil+processes+and+interaction+with+vegetation+and+landscape+properties+in+Arctic+tundra+using+above-+and+below-ground+imaging&rft.au=Dafflon%2C+Baptiste%3BTran%2C+Anh+P%3BPeterson%2C+John%3BOktem%2C+Rusen%3BUlrich%2C+Craig%3BWainwright%2C+Haruko%3BCurtis%2C+John+B%3BTorn%2C+Margaret%3BHubbard%2C+Susan&rft.aulast=Dafflon&rft.aufirst=Baptiste&rft.date=2016-01-01&rft.volume=11&rft.issue=&rft.spage=957&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh international conference on Permafrost; exploring permafrost in a future Earth N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Last updated - 2016-10-25 N1 - CODEN - #07985 N1 - SubjectsTermNotLitGenreText - Alaska; Arctic region; Barrow Alaska; Barrow Quadrangle; biochemistry; climate change; climate effects; degradation; hydrology; land cover; landscapes; permafrost; snow; snow cover; temperature; thawing; United States; vegetation ER - TY - JOUR T1 - Hierarchical Bayesian method for mapping biogeochemical hot spots using induced polarization imaging AN - 1827909779; PQ0003696487 AB - In floodplain environments, a naturally reduced zone (NRZ) is considered to be a common biogeochemical hot spot, having distinct microbial and geochemical characteristics. Although important for understanding their role in mediating floodplain biogeochemical processes, mapping the subsurface distribution of NRZs over the dimensions of a floodplain is challenging, as conventional wellbore data are typically spatially limited and the distribution of NRZs is heterogeneous. In this study, we present an innovative methodology for the probabilistic mapping of NRZs within a three-dimensional (3-D) subsurface domain using induced polarization imaging, which is a noninvasive geophysical technique. Measurements consist of surface geophysical surveys and drilling-recovered sediments at the U.S. Department of Energy field site near Rifle, CO (USA). Inversion of surface time domain-induced polarization (TDIP) data yielded 3-D images of the complex electrical resistivity, in terms of magnitude and phase, which are associated with mineral precipitation and other lithological properties. By extracting the TDIP data values colocated with wellbore lithological logs, we found that the NRZs have a different distribution of resistivity and polarization from the other aquifer sediments. To estimate the spatial distribution of NRZs, we developed a Bayesian hierarchical model to integrate the geophysical and wellbore data. In addition, the resistivity images were used to estimate hydrostratigraphic interfaces under the floodplain. Validation results showed that the integration of electrical imaging and wellbore data using a Bayesian hierarchical model was capable of mapping spatially heterogeneous interfaces and NRZ distributions thereby providing a minimally invasive means to parameterize a hydrobiogeochemical model of the floodplain. Key Points: * Naturally reduced zones (NRZs) are considered to be biogeochemical hot spots under floodplains * We developed a noninvasive probabilistic mapping method of NRZs using induced polarization imaging * This method provides a minimally invasive means to parameterize a floodplain biogeochemical model JF - Water Resources Research AU - Wainwright, Haruko M AU - Flores Orozco, Adrian AU - Buecker, Matthias AU - Dafflon, Baptiste AU - Chen, Jinsong AU - Hubbard, Susan S AU - Williams, Kenneth H AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA. Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 533 EP - 551 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 52 IS - 1 SN - 0043-1397, 0043-1397 KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts KW - Aquifers KW - Spatial distribution KW - Hot spots KW - Ecological distribution KW - Resistivity KW - Mapping KW - Hydrologic Data KW - Modelling KW - Biogeochemistry KW - Precipitation KW - Polarization KW - Sediments KW - Inversions KW - Imaging techniques KW - Methodology KW - Flood Plains KW - USA KW - Flood plains KW - Microorganisms KW - Water resources research KW - Water Resources KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - M2 556.16:Runoff (556.16) KW - Q2 09265:Sedimentary structures and stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1827909779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Hierarchical+Bayesian+method+for+mapping+biogeochemical+hot+spots+using+induced+polarization+imaging&rft.au=Wainwright%2C+Haruko+M%3BFlores+Orozco%2C+Adrian%3BBuecker%2C+Matthias%3BDafflon%2C+Baptiste%3BChen%2C+Jinsong%3BHubbard%2C+Susan+S%3BWilliams%2C+Kenneth+H&rft.aulast=Wainwright&rft.aufirst=Haruko&rft.date=2016-01-01&rft.volume=52&rft.issue=1&rft.spage=533&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2015WR017763 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-10-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Flood plains; Hot spots; Biogeochemistry; Ecological distribution; Mapping; Polarization; Imaging techniques; Methodology; Modelling; Aquifers; Spatial distribution; Precipitation; Water resources research; Inversions; Flood Plains; Microorganisms; Hydrologic Data; Sediments; Resistivity; Water Resources; USA DO - http://dx.doi.org/10.1002/2015WR017763 ER - TY - JOUR T1 - Comparing permafrost soil carbon pools from Earth system models to empirically derived datasets AN - 1824213775; 2016-085158 JF - International Conference on Permafrost (ICOP) Proceedings AU - Hugelius, Gustaf AU - McGuire, A David AU - Beer, Christian AU - Bohn, Theodore J AU - Burke, Eleanor J AU - Chadburn, Sarah E AU - Chen, Guangsheng AU - Chen, Xiaodong AU - Hayes, Daniel J AU - Jafarov, Elchin E AU - Koven, Charles D AU - Peng, Shushi AU - Schaefer, Kevin M Y1 - 2016 PY - 2016 DA - 2016 SP - 210 EP - 211 PB - [publisher varies], [location varies] VL - 11 KW - soils KW - peatlands KW - permafrost KW - monitoring KW - degradation KW - global change KW - climate change KW - geochemical cycle KW - models KW - mires KW - carbon KW - climate effects KW - carbon cycle KW - organic carbon KW - global warming KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824213775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Conference+on+Permafrost+%28ICOP%29+Proceedings&rft.atitle=Comparing+permafrost+soil+carbon+pools+from+Earth+system+models+to+empirically+derived+datasets&rft.au=Hugelius%2C+Gustaf%3BMcGuire%2C+A+David%3BBeer%2C+Christian%3BBohn%2C+Theodore+J%3BBurke%2C+Eleanor+J%3BChadburn%2C+Sarah+E%3BChen%2C+Guangsheng%3BChen%2C+Xiaodong%3BHayes%2C+Daniel+J%3BJafarov%2C+Elchin+E%3BKoven%2C+Charles+D%3BPeng%2C+Shushi%3BSchaefer%2C+Kevin+M&rft.aulast=Hugelius&rft.aufirst=Gustaf&rft.date=2016-01-01&rft.volume=11&rft.issue=&rft.spage=210&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Permafrost+%28ICOP%29+Proceedings&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh international conference on Permafrost; exploring permafrost in a future Earth N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 3 N1 - Last updated - 2016-09-29 N1 - CODEN - #00164 N1 - SubjectsTermNotLitGenreText - carbon; carbon cycle; climate change; climate effects; degradation; geochemical cycle; global change; global warming; mires; models; monitoring; organic carbon; peatlands; permafrost; soils ER - TY - JOUR T1 - Alteration of biotite wettability by salinity-induced chemical reactions under conditions relevant to geologic CO (sub 2) sequestration AN - 1819895119; 2016-081085 AB - The wettability of rocks and minerals significantly impacts the efficiency and safety of geologic CO (sub 2) sequestration. In this study, we investigated the effects of salinity-induced chemical reactions on biotite wettability changes under relevant operation conditions. Biotite was reacted with brine of different salinities (DI water, 0.1, 0.5, and 1.0 M NaCl) at 95 degrees C and 102 atm CO (sub 2) for 70 h. Then, static and dynamic contact angles of the prereacted biotite with brine (0.1 M NaCl) and supercritical CO (sub 2) were measured using the captive drop method at 102 atm CO (sub 2) and 48 degrees C. We found that reaction with higher salinity solution resulted in more hydrophilic biotite surfaces. This increased hydrophilicity is due to increased surface roughness, increased surface negative charge and higher densities of hydroxyl groups. Additionally, CO (sub 2) adhesion was observed during CO (sub 2) receding process. Higher contact angle hysteresis was also observed for samples with a higher incidence of CO (sub 2) adhesion, suggesting that CO (sub 2) adhesion could have contributed to the hysteresis. For the first time, we experimentally related chemical reactions and the consequent wettability alterations of minerals under GCS relevant conditions. These findings can be beneficial in understanding CO (sub 2) or other reactive fluids' transport and their distribution in subsurface systems during energy-related operations. JF - Abstracts with Programs - Geological Society of America AU - Zhang, Lijie AU - Kim, Yongman AU - Wan, Jiamin AU - Jun, Young-Shin AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 22 EP - 3 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 5 SN - 0016-7592, 0016-7592 KW - 30:Engineering geology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819895119?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Alteration+of+biotite+wettability+by+salinity-induced+chemical+reactions+under+conditions+relevant+to+geologic+CO+%28sub+2%29+sequestration&rft.au=Zhang%2C+Lijie%3BKim%2C+Yongman%3BWan%2C+Jiamin%3BJun%2C+Young-Shin%3BAnonymous&rft.aulast=Zhang&rft.aufirst=Lijie&rft.date=2016-01-01&rft.volume=48&rft.issue=5&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/10.1130%2Fabs%2F2016NC-275116 LA - English DB - GeoRef N1 - Conference title - Geological Society of America, North-Central Section, 50th annual meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-09-16 N1 - CODEN - GAAPBC DO - http://dx.doi.org/10.1130/abs/2016NC-275116 ER - TY - JOUR T1 - Self-photosensitization of nonphotosynthetic bacteria for solar-to-chemical production AN - 1811907938; PQ0003418490 AB - Using light in the darknessSolid-state devices can efficiently capture solar energy to produce chemicals and fuels from carbon dioxide. Yet biology has already developed a high-specificity, low-cost system to do just that through photosynthesis. Sakimoto et al. developed a biological-inorganic hybrid that combines the best of both worlds (see the Perspective by Mueller). They precipitated semiconductor nanoparticles on the surface of a nonphotosynthetic bacterium to serve as a light harvester. The captured energy sustained cellular metabolism, producing acetic acid: a natural waste product of respiration.Science, this issue p. 74; see also p. 34 Improving natural photosynthesis can enable the sustainable production of chemicals. However, neither purely artificial nor purely biological approaches seem poised to realize the potential of solar-to-chemical synthesis. We developed a hybrid approach, whereby we combined the highly efficient light harvesting of inorganic semiconductors with the high specificity, low cost, and self-replication and -repair of biocatalysts. We induced the self-photosensitization of a nonphotosynthetic bacterium, Moorella thermoacetica, with cadmium sulfide nanoparticles, enabling the photosynthesis of acetic acid from carbon dioxide. Biologically precipitated cadmium sulfide nanoparticles served as the light harvester to sustain cellular metabolism. This self-augmented biological system selectively produced acetic acid continuously over several days of light-dark cycles at relatively high quantum yields, demonstrating a self-replicating route toward solar-to-chemical carbon dioxide reduction. JF - Science AU - Sakimoto, Kelsey K AU - Wong, Andrew Barnabas AU - Yang, Peidong AD - Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Y1 - 2016/01/01/ PY - 2016 DA - 2016 Jan 01 SP - 74 EP - 77 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 United States VL - 351 IS - 6268 SN - 0036-8075, 0036-8075 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Bacteria KW - Energy metabolism KW - Photosynthesis KW - Fuels KW - biocatalysts KW - Wastes KW - Acetic acid KW - Light effects KW - cadmium sulfide KW - Quantum dots KW - Hybrids KW - Energy KW - Moorella thermoacetica KW - Carbon dioxide KW - nanoparticles KW - Metabolism KW - Harvesting KW - A 01360:Plant Diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1811907938?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Self-photosensitization+of+nonphotosynthetic+bacteria+for+solar-to-chemical+production&rft.au=Sakimoto%2C+Kelsey+K%3BWong%2C+Andrew+Barnabas%3BYang%2C+Peidong&rft.aulast=Sakimoto&rft.aufirst=Kelsey&rft.date=2016-01-01&rft.volume=351&rft.issue=6268&rft.spage=74&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.aad3317 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-08-17 N1 - SubjectsTermNotLitGenreText - Photosynthesis; Energy metabolism; biocatalysts; Fuels; Wastes; Acetic acid; cadmium sulfide; Light effects; Quantum dots; Energy; Hybrids; Carbon dioxide; nanoparticles; Harvesting; Metabolism; Bacteria; Moorella thermoacetica DO - http://dx.doi.org/10.1126/science.aad3317 ER - TY - JOUR T1 - Using uranium isotopes to track oxidative remobilization of U(IV) from naturally reduced zones AN - 1807506617; 2016-065241 AB - Uranium (U) mining and milling operations in the western United States have produced dozens of sites with U contaminated groundwater. U is redox active, primarily present in the environment in two valence states (+4 and +6). U(VI) is mobile in groundwater as soluble aqueous complexes, while U(IV) is usually insoluble and immobile, occurring primarily in sediments as U(IV) -bearing solids. Many U contaminated sites contain naturally reduced zones (NRZ's) that also have high U(IV) concentrations. During seasonal shifts in redox conditions (i.e., changes in concentration of dissolved oxygen (DO) and nitrate), U(IV) from these NRZ's can leach into groundwater as U(VI). These NRZ's may prolong the long-term remediation of U at contaminated sites by slowly releasing U(VI) into the groundwater. The use of the U isotope ratio (super 238) U/ (super 235) U allows us to better understand the addition of U to groundwater due to oxidation of NRZ's. U becomes sequestered in NRZ's via microbial reduction of dissolved U(VI) to U(IV). This process causes an isotopic shift in U; produced U(IV) is shifted to higher (super 238) U/ (super 235) U. We measured (super 238) U/ (super 235) U in solid materials of an NRZ and confirmed the existence of high- (super 238) U/ (super 235) U U(IV). Oxidation of NRZ's can be detected with (super 238) U/ (super 235) U measurements, because this high- (super 238) U/ (super 235) U U is remobilized, driving aqueous U to higher (super 238) U/ (super 235) U. We measured a doubling of U(VI) concentration and an increase of 0.3 per mil in (super 238) U/ (super 235) U in groundwater as DO was injected into an NRZ at a U contaminated site in Rifle, CO. The data confirmed that oxidative remobilization is accompanied by a (super 238) U/ (super 235) U increase. Future work includes using reactive transport modeling to study NRZ evolution and oxidation. JF - Abstracts with Programs - Geological Society of America AU - Jemison, Noah AU - Johnson, Thomas M AU - Lundstrom, Craig C AU - Davis, James A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 34 EP - 2 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 5 SN - 0016-7592, 0016-7592 KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807506617?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Using+uranium+isotopes+to+track+oxidative+remobilization+of+U%28IV%29+from+naturally+reduced+zones&rft.au=Jemison%2C+Noah%3BJohnson%2C+Thomas+M%3BLundstrom%2C+Craig+C%3BDavis%2C+James+A%3BAnonymous&rft.aulast=Jemison&rft.aufirst=Noah&rft.date=2016-01-01&rft.volume=48&rft.issue=5&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/10.1130%2Fabs%2F2016NC-275534 LA - English DB - GeoRef N1 - Conference title - Geological Society of America, North-Central Section, 50th annual meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-07-29 N1 - CODEN - GAAPBC DO - http://dx.doi.org/10.1130/abs/2016NC-275534 ER - TY - JOUR T1 - Structural controls of a geothermal system and effects on local groundwater aquifer, northern Cache Valley, Idaho AN - 1803776474; 2016-063162 AB - The Northern Cache Valley (NCV) of southeastern Idaho is a north-south trending Basin and Range graben that is receiving renewed interest for its geothermal potential. In the 1970s and 80s, geophysical and hydrological studies were undertaken, motivated by the presence of thermal wells and springs in the area. Geothermal exploration in this era culminated with the drilling of geothermal exploration wells by Sunedco Energy Development in 1979 and 1980. The test borehole temperatures were deemed too low (< 120 degrees C) for power production using technology available at the time. In January of 2014, a water well drilled to 79 meters, encountered Na-Cl-HCO (sub 3) water with a measured bottom hole temperature of 104 degrees C. Traditional magnesium corrected Na-K-Ca geothermometry of water from that well estimated the temperature of the thermal reservoir to be 204 degrees C. Due to this revived interest, new studies utilizing updated geochemical and geophysical techniques were undertaken. Present understanding of the NCV geothermal system suggests that fluid flow is associated with a fault(s) adjacent to Clifton Hill (aka Little Mountain) - a secondary horst complex rising from the floor of the Cache Valley graben. The existing data from the area is relatively sparse and is not suitable for pinpointing the location of faults thought to be acting as conduits for thermal water to travel from depth to the shallow subsurface. To investigate the locations of these faults and accurately characterize the plumbing of the geothermal system, high resolution potential field (gravity and magnetic) data was collected along lines made across the suspected location of the Clifton Hill bounding faults. Geophysical models of the subsurface using these data in conjunction with existing hydrogeological and geochemical data have aided in better determining fault locations. Groundwater level and aquifer temperature mapping in the area adjacent to the fault system has also been undertaken to explore the behavior of the shallow ground water aquifer in response to the discharge of thermal water through the system's faults. JF - Abstracts with Programs - Geological Society of America AU - Worthing, Wade AU - Wood, Thomas R AU - Glen, Jonathan AU - McLing, Travis L AU - Dobson, Patrick F AU - Ritzinger, Brent AU - Neupane, Ghanashyam AU - Thorne, Michael S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 33 EP - 1 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 6 SN - 0016-7592, 0016-7592 KW - 29A:Economic geology, geology of energy sources KW - 16:Structural geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803776474?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Structural+controls+of+a+geothermal+system+and+effects+on+local+groundwater+aquifer%2C+northern+Cache+Valley%2C+Idaho&rft.au=Worthing%2C+Wade%3BWood%2C+Thomas+R%3BGlen%2C+Jonathan%3BMcLing%2C+Travis+L%3BDobson%2C+Patrick+F%3BRitzinger%2C+Brent%3BNeupane%2C+Ghanashyam%3BThorne%2C+Michael+S%3BAnonymous&rft.aulast=Worthing&rft.aufirst=Wade&rft.date=2016-01-01&rft.volume=48&rft.issue=6&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/10.1130%2Fabs%2F2016RM-276186 LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 68th annual meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-07-14 N1 - CODEN - GAAPBC DO - http://dx.doi.org/10.1130/abs/2016RM-276186 ER - TY - JOUR T1 - Geophysical estimation of shallow permafrost distribution and properties in an ice-wedge polygon-dominated Arctic tundra region AN - 1793208914; 2016-047360 AB - Shallow permafrost distribution and characteristics are important for predicting ecosystem feedbacks to a changing climate over decadal to century timescales because they can drive active layer deepening and land surface deformation, which in turn can significantly affect hydrologic and biogeochemical responses, including greenhouse gas dynamics. As part of the U.S. Department of Energy Next-Generation Ecosystem Experiments-Arctic, we have investigated shallow Arctic permafrost characteristics at a site in Barrow, Alaska, with the objective of improving our understanding of the spatial distribution of shallow permafrost, its associated properties, and its links with landscape microtopography. To meet this objective, we have acquired and integrated a variety of information, including electric resistance tomography data, frequency-domain electromagnetic induction data, laboratory core analysis, petrophysical studies, high-resolution digital surface models, and color mosaics inferred from kite-based landscape imaging. The results of our study provide a comprehensive and high-resolution examination of the distribution and nature of shallow permafrost in the Arctic tundra, including the estimation of ice content, porosity, and salinity. Among other results, porosity in the top 2 m varied between 85% (besides ice wedges) and 40%, and was negatively correlated with fluid salinity. Salinity directly influenced ice and unfrozen water content and indirectly influenced the soil organic matter content. A relatively continuous but depth-variable increase in salinity led to a partially unfrozen saline layer (cryopeg) located below the top of the permafrost. The cryopeg environment could lead to year-round microbial production of greenhouse gases. Results also indicated a covariability between topography and permafrost characteristics including ice-wedge and salinity distribution. In addition to providing insight about the Arctic ecosystem, through integration of lab-based petrophysical results with field data, this study also quantified the key controls on electric resistivity at this Arctic permafrost site, including salinity, porosity, water content, ice content, soil organic matter content, and lithologic properties. JF - Geophysics AU - Dafflon, Baptiste AU - Hubbard, Susan AU - Ulrich, Craig AU - Peterson, John AU - Wu, Yuxin AU - Wainwright, Haruko AU - Kneafsey, Timothy J Y1 - 2016/01// PY - 2016 DA - January 2016 SP - WA247 EP - WA263 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 81 IS - 1 SN - 0016-8033, 0016-8033 KW - United States KW - imagery KW - permafrost KW - geophysical surveys KW - tundra KW - ecosystems KW - periglacial features KW - salinity KW - Barrow Alaska KW - spatial distribution KW - shallow depth KW - ice KW - ground ice KW - cryosphere KW - Arctic region KW - geophysical methods KW - electrical methods KW - resistivity KW - ice wedges KW - physical properties KW - surveys KW - Alaska KW - greenhouse gases KW - remote sensing KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793208914?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Geophysical+estimation+of+shallow+permafrost+distribution+and+properties+in+an+ice-wedge+polygon-dominated+Arctic+tundra+region&rft.au=Dafflon%2C+Baptiste%3BHubbard%2C+Susan%3BUlrich%2C+Craig%3BPeterson%2C+John%3BWu%2C+Yuxin%3BWainwright%2C+Haruko%3BKneafsey%2C+Timothy+J&rft.aulast=Dafflon&rft.aufirst=Baptiste&rft.date=2016-01-01&rft.volume=81&rft.issue=1&rft.spage=WA247&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2Fgeo2015-0175.1 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 94 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2016-06-02 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - Alaska; Arctic region; Barrow Alaska; cryosphere; ecosystems; electrical methods; geophysical methods; geophysical surveys; greenhouse gases; ground ice; ice; ice wedges; imagery; periglacial features; permafrost; physical properties; remote sensing; resistivity; salinity; shallow depth; spatial distribution; surveys; tundra; United States DO - http://dx.doi.org/10.1190/geo2015-0175.1 ER - TY - JOUR T1 - A rock-physics investigation of unconsolidated saline permafrost; P-wave properties from laboratory ultrasonic measurements AN - 1793208909; 2016-047359 AB - Saline permafrost is sensitive to thermal disturbances and is prone to subsidence, which renders it a major source of geohazard in Arctic coastal environments. Seismic methods could be used to map and monitor saline permafrost at scales of geotechnical interests because of the ice-content dependencies of seismic properties. We have developed a comprehensive study of the ultrasonic P-wave properties (i.e., velocity and attenuation) of synthetic saline permafrost samples for a range of salinities and temperatures, and measurements conducted on a fine-grained permafrost core obtained from Barrow, Alaska. The resulting data consist of P-wave properties presented as functions of temperature and salinity. Notable observations include the following: P-wave velocities showed marked reductions in the presence of dissolved salts and complex variations resulting from the water-to-ice phase transitions; strong P-wave attenuation was present in the temperature intervals in which the samples were partially frozen. When presented as functions of ice saturation, the data sets lead us to two key findings: (1) neither a purely cementing nor a purely pore-filling model of the pore-scale distributions of ice could adequately fit the observed velocity data and (2) although the velocities increase monotonically with increasing ice saturations, P-wave attenuation reaches a maximum at intermediate ice saturations-contrary to the ordinary expectation of decreasing attenuation with increasing velocities. The observed ice-content dependencies of P-wave properties, along with the implications on the probable pore-scale distributions of ice, provide a valuable basis for rock-physics modeling, which in turn could facilitate seismic characterizations of saline permafrost. JF - Geophysics AU - Dou, Shan AU - Nakagawa, Seiji AU - Dreger, Douglas AU - Ajo-Franklin, Jonathan Y1 - 2016/01// PY - 2016 DA - January 2016 SP - WA233 EP - WA245 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 81 IS - 1 SN - 0016-8033, 0016-8033 KW - United States KW - P-waves KW - permafrost KW - elastic waves KW - Barrow Alaska KW - laboratory studies KW - attenuation KW - ice KW - velocity KW - ground ice KW - saline composition KW - soil mechanics KW - cryosphere KW - body waves KW - experimental studies KW - geophysical methods KW - ultrasonic methods KW - porosity KW - seismic methods KW - physical properties KW - saturation KW - Alaska KW - unconsolidated materials KW - seismic waves KW - 30:Engineering geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793208909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=A+rock-physics+investigation+of+unconsolidated+saline+permafrost%3B+P-wave+properties+from+laboratory+ultrasonic+measurements&rft.au=Dou%2C+Shan%3BNakagawa%2C+Seiji%3BDreger%2C+Douglas%3BAjo-Franklin%2C+Jonathan&rft.aulast=Dou&rft.aufirst=Shan&rft.date=2016-01-01&rft.volume=81&rft.issue=1&rft.spage=WA233&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2Fgeo2015-0176.1 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 52 N1 - PubXState - OK N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-06-02 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - Alaska; attenuation; Barrow Alaska; body waves; cryosphere; elastic waves; experimental studies; geophysical methods; ground ice; ice; laboratory studies; P-waves; permafrost; physical properties; porosity; saline composition; saturation; seismic methods; seismic waves; soil mechanics; ultrasonic methods; unconsolidated materials; United States; velocity DO - http://dx.doi.org/10.1190/geo2015-0176.1 ER - TY - JOUR T1 - Toward more realistic projections of soil carbon dynamics by Earth system models AN - 1789751392; 2016-045237 AB - Soil carbon (C) is a critical component of Earth system models (ESMs), and its diverse representations are a major source of the large spread across models in the terrestrial C sink from the third to fifth assessment reports of the Intergovernmental Panel on Climate Change (IPCC). Improving soil C projections is of a high priority for Earth system modeling in the future IPCC and other assessments. To achieve this goal, we suggest that (1) model structures should reflect real-world processes, (2) parameters should be calibrated to match model outputs with observations, and (3) external forcing variables should accurately prescribe the environmental conditions that soils experience. First, most soil C cycle models simulate C input from litter production and C release through decomposition. The latter process has traditionally been represented by first-order decay functions, regulated primarily by temperature, moisture, litter quality, and soil texture. While this formulation well captures macroscopic soil organic C (SOC) dynamics, better understanding is needed of their underlying mechanisms as related to microbial processes, depth-dependent environmental controls, and other processes that strongly affect soil C dynamics. Second, incomplete use of observations in model parameterization is a major cause of bias in soil C projections from ESMs. Optimal parameter calibration with both pool- and flux-based data sets through data assimilation is among the highest priorities for near-term research to reduce biases among ESMs. Third, external variables are represented inconsistently among ESMs, leading to differences in modeled soil C dynamics. We recommend the implementation of traceability analyses to identify how external variables and model parameterizations influence SOC dynamics in different ESMs. Overall, projections of the terrestrial C sink can be substantially improved when reliable data sets are available to select the most representative model structure, constrain parameters, and prescribe forcing fields. Abstract Copyright (2015), . American Geophysical Union. All Rights Reserved. JF - Global Biogeochemical Cycles AU - Luo, Yiqi AU - Ahlstrom, Anders AU - Allison, Steven D AU - Batjes, Niels H AU - Brovkin, Victor AU - Carvalhais, Nuno AU - Chappell, Adrian AU - Ciais, Philippe AU - Davidson, Eric A AU - Finzi, Adien AU - Georgiou, Katerina AU - Guenet, Bertrand AU - Hararuk, Oleksandra AU - Harden, Jennifer W AU - He, Yujie AU - Hopkins, Francesca AU - Jiang, Lifen AU - Koven, Charlie AU - Jackson, Robert B AU - Jones, Chris D AU - Lara, Mark J AU - Liang, Junyi AU - McGuire, A David AU - Parton, William AU - Peng, Changhui AU - Randerson, James T AU - Salazar, Alejandro AU - Sierra, Carlos A AU - Smith, Matthew J AU - Tian, Hanqin AU - Todd-Brown, Katherine E O AU - Torn, Margaret AU - van Groenigen, Kees Jan AU - Wang, Ying Ping AU - West, Tristram O AU - Wei, Yaxing AU - Wieder, William R AU - Xia, Jianyang AU - Xu, Xia AU - Xu, Xiaofeng AU - Zhou, Tao Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 40 EP - 56 PB - American Geophysical Union, Washington, DC VL - 30 IS - 1 SN - 0886-6236, 0886-6236 KW - soils KW - numerical models KW - dynamics KW - carbon KW - sinks KW - global change KW - carbon cycle KW - geochemical cycle KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789751392?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+Biogeochemical+Cycles&rft.atitle=Toward+more+realistic+projections+of+soil+carbon+dynamics+by+Earth+system+models&rft.au=Luo%2C+Yiqi%3BAhlstrom%2C+Anders%3BAllison%2C+Steven+D%3BBatjes%2C+Niels+H%3BBrovkin%2C+Victor%3BCarvalhais%2C+Nuno%3BChappell%2C+Adrian%3BCiais%2C+Philippe%3BDavidson%2C+Eric+A%3BFinzi%2C+Adien%3BGeorgiou%2C+Katerina%3BGuenet%2C+Bertrand%3BHararuk%2C+Oleksandra%3BHarden%2C+Jennifer+W%3BHe%2C+Yujie%3BHopkins%2C+Francesca%3BJiang%2C+Lifen%3BKoven%2C+Charlie%3BJackson%2C+Robert+B%3BJones%2C+Chris+D%3BLara%2C+Mark+J%3BLiang%2C+Junyi%3BMcGuire%2C+A+David%3BParton%2C+William%3BPeng%2C+Changhui%3BRanderson%2C+James+T%3BSalazar%2C+Alejandro%3BSierra%2C+Carlos+A%3BSmith%2C+Matthew+J%3BTian%2C+Hanqin%3BTodd-Brown%2C+Katherine+E+O%3BTorn%2C+Margaret%3Bvan+Groenigen%2C+Kees+Jan%3BWang%2C+Ying+Ping%3BWest%2C+Tristram+O%3BWei%2C+Yaxing%3BWieder%2C+William+R%3BXia%2C+Jianyang%3BXu%2C+Xia%3BXu%2C+Xiaofeng%3BZhou%2C+Tao&rft.aulast=Luo&rft.aufirst=Yiqi&rft.date=2016-01-01&rft.volume=30&rft.issue=1&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=Global+Biogeochemical+Cycles&rft.issn=08866236&rft_id=info:doi/10.1002%2F2015GB005239 L2 - http://www.agu.org/journals/gb/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 150 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-05-19 N1 - SubjectsTermNotLitGenreText - carbon; carbon cycle; dynamics; geochemical cycle; global change; numerical models; sinks; soils DO - http://dx.doi.org/10.1002/2015GB005239 ER - TY - JOUR T1 - Design of an artificial photosynthetic system for production of alcohols in high concentration from CO sub(2) AN - 1787978583; PQ0002954534 AB - Artificial photosynthesis of liquid fuels is a potential source for clean energy. Alcohols are particularly attractive products because of their high energy density and market value per amount of energy input. The major challenges in photo/electrochemical synthesis of alcohols from sunlight, water and CO sub(2) are low product selectivity, high membrane fuel-crossover losses, and high cost of product separation from the electrolyte. Here we propose an artificial photosynthesis scheme for direct synthesis and separation to almost pure ethanol with minimum product crossover using saturated salt electrolytes. The ethanol produced in the saturated salt electrolytes can be readily phase separated into a microemulsion, which can be collected as pure products in a liquid-liquid extractor. A novel design of an integrated artificial photosynthetic system is proposed that continuously produces >90 wt% pure ethanol using a polycrystalline copper cathode at a current density of 0.85 mA cm super(-2). The annual production rate of >90 wt% ethanol using such a photosynthesis system operating at 10 mA cm super(-2) (12% solar-to-fuel (STF) efficiency) can be 15.27 million gallons per year per square kilometer, which corresponds to 7% of the industrial ethanol production capacity of California. JF - Energy & Environmental Science AU - Singh, Meenesh R AU - Bell, Alexis T AD - Joint Center for Artificial Photosynthesis; Material Science Division; Lawrence Berkeley National Laboratory; Berkeley; CA 94720; USA Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 193 EP - 199 PB - Royal Society of Chemistry, c/o Springer-Verlag New York Inc. Secaucus New Jersey 07096 2485 United States VL - 9 IS - 1 SN - 1754-5692, 1754-5692 KW - Environment Abstracts KW - Alcohol KW - Electrolytes KW - Membranes KW - Photosynthesis KW - Fuels KW - Copper KW - Design KW - Salts KW - INE, USA, California KW - Energy KW - Sunlight KW - Electrochemistry KW - Carbon dioxide KW - Ethanol KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1787978583?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%26+Environmental+Science&rft.atitle=Design+of+an+artificial+photosynthetic+system+for+production+of+alcohols+in+high+concentration+from+CO+sub%282%29&rft.au=Singh%2C+Meenesh+R%3BBell%2C+Alexis+T&rft.aulast=Singh&rft.aufirst=Meenesh&rft.date=2016-01-01&rft.volume=9&rft.issue=1&rft.spage=193&rft.isbn=&rft.btitle=&rft.title=Energy+%26+Environmental+Science&rft.issn=17545692&rft_id=info:doi/10.1039%2Fc5ee02783g LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 36 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Alcohol; Electrolytes; Membranes; Photosynthesis; Fuels; Copper; Design; Salts; Energy; Sunlight; Carbon dioxide; Electrochemistry; Ethanol; INE, USA, California DO - http://dx.doi.org/10.1039/c5ee02783g ER - TY - JOUR T1 - Plant compartment and biogeography affect microbiome composition in cultivated and native Agave species AN - 1785232892; PQ0002807547 AB - * Desert plants are hypothesized to survive the environmental stress inherent to these regions in part thanks to symbioses with microorganisms, and yet these microbial species, the communities they form, and the forces that influence them are poorly understood. * Here we report the first comprehensive investigation of the microbial communities associated with species of Agave, which are native to semiarid and arid regions of Central and North America and are emerging as biofuel feedstocks. We examined prokaryotic and fungal communities in the rhizosphere, phyllosphere, leaf and root endosphere, as well as proximal and distal soil samples from cultivated and native agaves, through Illumina amplicon sequencing. * Phylogenetic profiling revealed that the composition of prokaryotic communities was primarily determined by the plant compartment, whereas the composition of fungal communities was mainly influenced by the biogeography of the host species. Cultivated A. tequilana exhibited lower levels of prokaryotic diversity compared with native agaves, although no differences in microbial diversity were found in the endosphere. * Agaves shared core prokaryotic and fungal taxa known to promote plant growth and confer tolerance to abiotic stress, which suggests common principles underpinning Agave-microbe interactions. See also the Commentary by Hacquard JF - New Phytologist AU - Coleman-Derr, Devin AU - Desgarennes, Damaris AU - Fonseca-Garcia, Citlali AU - Gross, Stephen AU - Clingenpeel, Scott AU - Woyke, Tanja AU - North, Gretchen AU - Visel, Axel AU - Partida-Martinez, Laila P AU - Tringe, Susannah G AD - Department of Energy, Joint Genome Institute, Walnut Creek, CA, 94598, USA. Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 798 EP - 811 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 209 IS - 2 SN - 0028-646X, 0028-646X KW - Ecology Abstracts KW - Phylogeny KW - Biogeography KW - Rhizosphere KW - Agave KW - Leaves KW - Roots KW - Host plants KW - Soil KW - Phyllosphere KW - Deserts KW - Microorganisms KW - Plant communities KW - Environmental stress KW - Biofuels KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1785232892?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=New+Phytologist&rft.atitle=Plant+compartment+and+biogeography+affect+microbiome+composition+in+cultivated+and+native+Agave+species&rft.au=Coleman-Derr%2C+Devin%3BDesgarennes%2C+Damaris%3BFonseca-Garcia%2C+Citlali%3BGross%2C+Stephen%3BClingenpeel%2C+Scott%3BWoyke%2C+Tanja%3BNorth%2C+Gretchen%3BVisel%2C+Axel%3BPartida-Martinez%2C+Laila+P%3BTringe%2C+Susannah+G&rft.aulast=Coleman-Derr&rft.aufirst=Devin&rft.date=2016-01-01&rft.volume=209&rft.issue=2&rft.spage=798&rft.isbn=&rft.btitle=&rft.title=New+Phytologist&rft.issn=0028646X&rft_id=info:doi/10.1111%2Fnph.13697 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-04-01 N1 - Last updated - 2016-08-03 N1 - SubjectsTermNotLitGenreText - Phylogeny; Biogeography; Rhizosphere; Leaves; Roots; Host plants; Soil; Phyllosphere; Deserts; Plant communities; Microorganisms; Environmental stress; Biofuels; Agave DO - http://dx.doi.org/10.1111/nph.13697 ER - TY - JOUR T1 - M13 Bacteriophage and Adeno-Associated Virus Hybrid for Novel Tissue Engineering Material with Gene Delivery Functions AN - 1776668330; PQ0002762864 AB - A novel hybrid phage carrying genes from prokaryotic M13 phage and eukaryotic adeno-associated viruses can be used as a tissue engineering material with gene delivery functions. The filamentous shape of the resulting hybrid phage easily forms nanofibrous matrices, which can support cellular growth in tissue culture conditions and deliver the target programmed gene information into the target cells. JF - Advanced Healthcare Materials AU - Yoo, So Young AU - Jin, Hyo-Eon AU - Choi, Dong Shin AU - Kobayashi, Masae AU - Farouz, Yohan AU - Wang, Sky AU - Lee, Seung-Wuk AD - Department of Bioengineering, University of California, Berkeley, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley Nanoscience and Nanoengineering Institute, Berkeley, CA, 94720, USA. Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 88 EP - 93 PB - John Wiley & Sons, Ltd., Baffins Lane Chichester W. Sussex PO19 1UD United Kingdom VL - 5 IS - 1 SN - 2192-2640, 2192-2640 KW - Virology & AIDS Abstracts; Biotechnology and Bioengineering Abstracts KW - Phages KW - Bacteria KW - Gene transfer KW - Hybrids KW - Tissue culture KW - Tissue engineering KW - Adeno-associated virus KW - W 30920:Tissue Engineering KW - V 22310:Genetics, Taxonomy & Structure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1776668330?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advanced+Healthcare+Materials&rft.atitle=M13+Bacteriophage+and+Adeno-Associated+Virus+Hybrid+for+Novel+Tissue+Engineering+Material+with+Gene+Delivery+Functions&rft.au=Yoo%2C+So+Young%3BJin%2C+Hyo-Eon%3BChoi%2C+Dong+Shin%3BKobayashi%2C+Masae%3BFarouz%2C+Yohan%3BWang%2C+Sky%3BLee%2C+Seung-Wuk&rft.aulast=Yoo&rft.aufirst=So&rft.date=2016-01-01&rft.volume=5&rft.issue=1&rft.spage=88&rft.isbn=&rft.btitle=&rft.title=Advanced+Healthcare+Materials&rft.issn=21922640&rft_id=info:doi/10.1002%2Fadhm.201500179 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-03-01 N1 - Last updated - 2016-04-13 N1 - SubjectsTermNotLitGenreText - Phages; Gene transfer; Hybrids; Tissue culture; Tissue engineering; Bacteria; Adeno-associated virus DO - http://dx.doi.org/10.1002/adhm.201500179 ER - TY - JOUR T1 - 184AA3: a xenograft model of ER+ breast adenocarcinoma. AN - 1760879083; 26661596 AB - Despite the prevalence and significant morbidity resulting from estrogen receptor positive (ER(+)) breast adenocarcinomas, there are only a few models of this cancer subtype available for drug development and arguably none for studying etiology. Those models that do exist have questionable clinical relevance. Given our goal of developing luminal models, we focused on six cell lines derived by minimal mutagenesis from normal human breast cells, and asked if any could generate clinically relevant xenografts, which we then extensively characterized. Xenografts of one cell line, 184AA3, consistently formed ER(+) adenocarcinomas that had a high proliferative rate and other features consistent with "luminal B" intrinsic subtype. Squamous and spindle cell/mesenchymal differentiation was absent, in stark contrast to other cell lines that we examined or others have reported. We explored intratumoral heterogeneity produced by 184AA3 by immunophenotyping xenograft tumors and cultured cells, and characterized marker expression by immunofluorescence and flow cytometry. A CD44(High) subpopulation was discovered, yet their tumor forming ability was far less than CD44(Low) cells. Single cell cloning revealed the phenotypic plasticity of 184AA3, consistent with the intratumoral heterogeneity observed in xenografts. Characterization of ER expression in cultures revealed ER protein and signaling is intact, yet when estrogen was depleted in culture, and in vivo, it did not impact cell or tumor growth, analogous to therapeutically resistant ER(+) cancers. This model is appropriate for studies of the etiology of ovarian hormone independent adenocarcinomas, for identification of therapeutic targets, predictive testing, and drug development. JF - Breast cancer research and treatment AU - Hines, William C AU - Kuhn, Irene AU - Thi, Kate AU - Chu, Berbie AU - Stanford-Moore, Gaelen AU - Sampayo, Rocío AU - Garbe, James C AU - Stampfer, Martha AU - Borowsky, Alexander D AU - Bissell, Mina J AD - Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Mailstop 977R225A, 1 Cyclotron Road, Berkeley, CA, 94720, USA. CHines@LBL.GOV. ; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Mailstop 977R225A, 1 Cyclotron Road, Berkeley, CA, 94720, USA. ; Área Investigación, Instituto de Oncología Angel H. Roffo-UBA, Buenos Aires, Argentina. ; Department of Pathology and Laboratory Medicine and Center for Comparative Medicine, University of California, Davis, Davis, USA. ; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Mailstop 977R225A, 1 Cyclotron Road, Berkeley, CA, 94720, USA. MJBissell@LBL.GOV. Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 37 EP - 52 VL - 155 IS - 1 KW - Biomarkers KW - 0 KW - Receptors, Estrogen KW - Index Medicus KW - Xenograft KW - Luminal breast cancer models KW - Intratumoral heterogeneity KW - Microenvironment KW - Animals KW - Humans KW - Xenograft Model Antitumor Assays KW - Disease Models, Animal KW - Mice KW - Cell Line, Tumor KW - Female KW - Adenocarcinoma -- metabolism KW - Breast Neoplasms -- pathology KW - Breast Neoplasms -- metabolism KW - Receptors, Estrogen -- metabolism KW - Adenocarcinoma -- pathology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1760879083?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Breast+cancer+research+and+treatment&rft.atitle=184AA3%3A+a+xenograft+model+of+ER%2B+breast+adenocarcinoma.&rft.au=Hines%2C+William+C%3BKuhn%2C+Irene%3BThi%2C+Kate%3BChu%2C+Berbie%3BStanford-Moore%2C+Gaelen%3BSampayo%2C+Roc%C3%ADo%3BGarbe%2C+James+C%3BStampfer%2C+Martha%3BBorowsky%2C+Alexander+D%3BBissell%2C+Mina+J&rft.aulast=Hines&rft.aufirst=William&rft.date=2016-01-01&rft.volume=155&rft.issue=1&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Breast+cancer+research+and+treatment&rft.issn=1573-7217&rft_id=info:doi/10.1007%2Fs10549-015-3649-z LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-10-13 N1 - Date created - 2016-01-08 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Cancer Res. 1997 Aug 1;57(15):3159-67 [9242444] Am J Pathol. 1998 Aug;153(2):457-67 [9708806] Cancer Res. 2005 Jul 1;65(13):5506-11 [15994920] Cancer Res. 2006 Feb 1;66(3):1526-35 [16452209] Nat Genet. 2006 Apr;38(4):468-73 [16565718] Nat Rev Cancer. 2006 Dec;6(12):924-35 [17109012] Breast Cancer Res. 2006;8(5):R59 [17062128] Cancer Res. 2008 Mar 1;68(5):1378-87 [18316601] Nat Med. 2009 Aug;15(8):907-13 [19648928] Cancer Res. 2009 Oct 1;69(19):7557-68 [19773443] J Mammary Gland Biol Neoplasia. 2009 Dec;14(4):367-79 [19936891] Clin Cancer Res. 2010 Dec 15;16(24):6100-10 [21169259] Nat Med. 2011;17(11):1514-20 [22019887] Breast Cancer Res. 2011;13(6):221 [22217398] Proc Natl Acad Sci U S A. 2012 Apr 17;109(16):6124-9 [22454501] Nature. 2012 Jun 21;486(7403):353-60 [22722193] Breast Cancer Res Treat. 2012 Sep;135(2):415-32 [22821401] Nature. 2012 Oct 4;490(7418):61-70 [23000897] J Vis Exp. 2013;(71). pii: 50011. doi: 10.3791/50011 [23328888] PLoS One. 2013;8(2):e57314 [23437366] Lab Invest. 2013 Apr;93(4):480-97 [23399853] Cell Rep. 2014 Mar 13;6(5):779-81 [24630040] Clin Cancer Res. 2014 Aug 15;20(16):4314-25 [24947930] Nature. 2014 Oct 2;514(7520):54-8 [25079331] Mutat Res Genet Toxicol Environ Mutagen. 2014 Dec;775-776:48-54 [25435355] Sci Rep. 2015;5:8919 [25747469] Nat Commun. 2015;6:6927 [25896888] Nature. 2015 Sep 3;525(7567):114-8 [26266975] Nature. 2015 Sep 3;525(7567):119-23 [26266985] Breast Cancer Res. 2003;5(2):89-95 [12631387] Proc Natl Acad Sci U S A. 2003 Apr 1;100(7):3983-8 [12629218] Oncogene. 2003 Aug 14;22(34):5238-51 [12917625] Breast Cancer Res. 2004;6(1):31-8 [14680483] Mol Endocrinol. 2004 Feb;18(2):402-11 [14605097] Cancer Metastasis Rev. 1983;2(1):5-23 [6616442] Proc Natl Acad Sci U S A. 1985 Apr;82(8):2394-8 [3857588] In Vitro Cell Dev Biol. 1987 Mar;23(3):181-8 [3558253] Cancer Res. 1990 Sep 15;50(18):6075-86 [1975513] Am J Pathol. 1996 Jan;148(1):313-9 [8546221] N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1007/s10549-015-3649-z ER - TY - JOUR T1 - Spatially-explicit water balance implications of carbon capture and sequestration AN - 1753472310; PQ0002417686 AB - Implementation of carbon capture and sequestration (CCS) will increase water demand due to the cooling water requirements of CO2 capture equipment. If the captured CO2 is injected into saline aquifers for sequestration, brine may be extracted to manage the aquifer pressure, and can be desalinated to provide additional freshwater supply. We conduct a geospatial analysis to determine how CCS may affect local water supply and demand across the contiguous United States. We calculate baseline indices for each county in the year 2005, and project future water supply and demand with and without CCS through 2030. We conduct sensitivity analyses to identify the system parameters that most significantly affect water balance. Water supply changes due to inter-annual variability and projected climate change are overwhelmingly the most significant sources of variation. CCS can have strong local effects on water supply and demand, but overall it has a modest effect on water balances. JF - Environmental Modelling & Software AU - Sathre, Roger AU - Breunig, Hanna AU - Greenblatt, Jeffery AU - Larsen, Peter AU - Masanet, Eric AU - McKone, Thomas AU - Quinn, Nigel AU - Scown, Corinne AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 153 EP - 162 PB - Elsevier B.V., P.O. Box 800 Kidlington Oxford OX5 1DX United Kingdom VL - 75 SN - 1364-8152, 1364-8152 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Environment Abstracts; Sustainability Science Abstracts KW - Water balance KW - Water stress KW - CCS KW - Climate change mitigation KW - GIS KW - Electricity supply KW - Aquifers KW - Climate change KW - Water Supply KW - Cooling water KW - Hydrologic Budget KW - Water supplies KW - Computer programs KW - Carbon KW - Ground water KW - Water demand KW - Water Demand KW - Water supply KW - USA KW - Sensitivity analysis KW - Water Requirements KW - Groundwater KW - Carbon dioxide KW - Carbon Dioxide KW - Brines KW - AQ 00001:Water Resources and Supplies KW - Q5 08503:Characteristics, behavior and fate KW - SW 5040:Data acquisition KW - M3 1010:Issues in Sustainable Development KW - ENA 16:Renewable Resources-Water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1753472310?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Modelling+%26+Software&rft.atitle=Spatially-explicit+water+balance+implications+of+carbon+capture+and+sequestration&rft.au=Sathre%2C+Roger%3BBreunig%2C+Hanna%3BGreenblatt%2C+Jeffery%3BLarsen%2C+Peter%3BMasanet%2C+Eric%3BMcKone%2C+Thomas%3BQuinn%2C+Nigel%3BScown%2C+Corinne&rft.aulast=Sathre&rft.aufirst=Roger&rft.date=2016-01-01&rft.volume=75&rft.issue=&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Environmental+Modelling+%26+Software&rft.issn=13648152&rft_id=info:doi/10.1016%2Fj.envsoft.2015.10.011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-01-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Water balance; Carbon; Climate change; Cooling water; Ground water; Carbon dioxide; Brines; Water supply; Aquifers; Computer programs; Water demand; Sensitivity analysis; Water supplies; Water Demand; Water Supply; Hydrologic Budget; Water Requirements; Groundwater; Carbon Dioxide; USA DO - http://dx.doi.org/10.1016/j.envsoft.2015.10.011 ER - TY - JOUR T1 - Non-invasive imaging of cellulose microfibril orientation within plant cell walls by polarized Raman microspectroscopy AN - 1751205723; PQ0002334152 AB - Cellulose microfibrils represent the major scaffold of plant cell walls. Different packing and orientation of the microfibrils at the microscopic scale determines the macroscopic properties of cell walls and thus affect their functions with a profound effect on plant survival. We developed a polarized Raman microspectroscopic method to determine cellulose microfibril orientation within rice plant cell walls. Employing an array of point measurements as well as area imaging and subsequent Matlab-assisted data processing, we were able to characterize the distribution of cellulose microfibril orientation in terms of director angle and anisotropy magnitude. Using this approach we detected differences between wild type rice plants and the rice brittle culm mutant, which shows a more disordered cellulose microfibril arrangement, and differences between different tissues of a wild type rice plant. This novel non-invasive Raman imaging approach allows for quantitative assessment of cellulose fiber orientation in cell walls of herbaceous plants, an important advancement in cell wall characterization. Biotechnol. Bioeng. 2016; 113: 82-90. The authors developed a noninvasive polarized Raman microspectroscopic method to determine distribution of cellulose microfibril orientation within rice plant cell walls. Clear differences in cellulose microfibril orientation were observed between different tissues of the wild type rice plant as well as between the wild type and the brittle culm mutant, a mutant compromised in secondary cell wall deposition. This is the first time that polarized Raman microspectroscopy was used to determine supramolecular organization in cell walls for herbaceous plants. JF - Biotechnology and Bioengineering AU - Sun, Lan AU - Singh, Seema AU - Joo, Michael AU - Vega-Sanchez, Miguel AU - Ronald, Pamela AU - Simmons, Blake A AU - Adams, Paul AU - Auer, Manfred AD - Technology Division, Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Emeryville, California. PY - 2016 SP - 82 EP - 90 PB - Wiley Subscription Services VL - 113 IS - 1 SN - 0006-3592, 0006-3592 KW - Biotechnology and Bioengineering Abstracts KW - Cell survival KW - Fibers KW - Data processing KW - Anisotropy KW - Plant cells KW - Cellulose KW - Microfibrils KW - Packing KW - imaging KW - scaffolds KW - Cell walls KW - W 30920:Tissue Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1751205723?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+and+Bioengineering&rft.atitle=Non-invasive+imaging+of+cellulose+microfibril+orientation+within+plant+cell+walls+by+polarized+Raman+microspectroscopy&rft.au=Sun%2C+Lan%3BSingh%2C+Seema%3BJoo%2C+Michael%3BVega-Sanchez%2C+Miguel%3BRonald%2C+Pamela%3BSimmons%2C+Blake+A%3BAdams%2C+Paul%3BAuer%2C+Manfred&rft.aulast=Sun&rft.aufirst=Lan&rft.date=2016-01-01&rft.volume=113&rft.issue=1&rft.spage=82&rft.isbn=&rft.btitle=&rft.title=Biotechnology+and+Bioengineering&rft.issn=00063592&rft_id=info:doi/10.1002%2Fbit.25690 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-12-01 N1 - Last updated - 2016-01-21 N1 - SubjectsTermNotLitGenreText - Cell survival; Fibers; Anisotropy; Data processing; Plant cells; Cellulose; Microfibrils; Packing; imaging; scaffolds; Cell walls DO - http://dx.doi.org/10.1002/bit.25690 ER - TY - JOUR T1 - A novel Fanconi anaemia subtype associated with a dominant-negative mutation in RAD51. AN - 1750435121; 26681308 AB - Fanconi anaemia (FA) is a hereditary disease featuring hypersensitivity to DNA cross-linker-induced chromosomal instability in association with developmental abnormalities, bone marrow failure and a strong predisposition to cancer. A total of 17 FA disease genes have been reported, all of which act in a recessive mode of inheritance. Here we report on a de novo g.41022153G>A; p.Ala293Thr (NM_002875) missense mutation in one allele of the homologous recombination DNA repair gene RAD51 in an FA-like patient. This heterozygous mutation causes a novel FA subtype, 'FA-R', which appears to be the first subtype of FA caused by a dominant-negative mutation. The patient, who features microcephaly and mental retardation, has reached adulthood without the typical bone marrow failure and paediatric cancers. Together with the recent reports on RAD51-associated congenital mirror movement disorders, our results point to an important role for RAD51-mediated homologous recombination in neurodevelopment, in addition to DNA repair and cancer susceptibility. JF - Nature communications AU - Ameziane, Najim AU - May, Patrick AU - Haitjema, Anneke AU - van de Vrugt, Henri J AU - van Rossum-Fikkert, Sari E AU - Ristic, Dejan AU - Williams, Gareth J AU - Balk, Jesper AU - Rockx, Davy AU - Li, Hong AU - Rooimans, Martin A AU - Oostra, Anneke B AU - Velleuer, Eunike AU - Dietrich, Ralf AU - Bleijerveld, Onno B AU - Maarten Altelaar, A F AU - Meijers-Heijboer, Hanne AU - Joenje, Hans AU - Glusman, Gustavo AU - Roach, Jared AU - Hood, Leroy AU - Galas, David AU - Wyman, Claire AU - Balling, Rudi AU - den Dunnen, Johan AU - de Winter, Johan P AU - Kanaar, Roland AU - Gelinas, Richard AU - Dorsman, Josephine C AD - Department of Clinical Genetics, VU University Medical Center, Van der Boechorststraat 7, Amsterdam 1081 BT, The Netherlands. ; Luxembourg Centre for Systems Biomedicine, House of Biomedicine, 7 Avenue des Hauts-Fourneaux, Esch/Alzette L-4362, Luxembourg. ; Department of Genetics, Cancer Genomics Center, PO Box 2040, Rotterdam 3000 CA, The Netherlands. ; Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA. ; Institute for Systems Biology, 401 Terry Avenue North, Seattle, Washington 98109-5234, USA. ; Department of Paediatric Oncology, Hematology and Clinical Immunology, Center for Child and Adolescent Health, Medical Faculty, Heinrich Heine University, Moorenstrasse 5, 40225 Du¨sseldorf, Germany. ; Deutsche Fanconi-Anämie-Hilfe e.V., Böckenweg 4, 59427 Unna, Germany. ; Mass Spectrometry and Proteomics Facility, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands. ; Department of Human and Clinical Genetics, Leiden University Medical Center, Albinusdreef 2, Leiden 2333ZA, The Netherlands. Y1 - 2015/12/18/ PY - 2015 DA - 2015 Dec 18 SP - 8829 VL - 6 KW - DNA-Binding Proteins KW - 0 KW - Rad50 protein, human KW - DNA Repair Enzymes KW - EC 6.5.1.- KW - Index Medicus KW - Young Adult KW - Base Sequence KW - DNA Repair KW - DNA Damage KW - Humans KW - Recombination, Genetic KW - Molecular Sequence Data KW - Male KW - DNA Repair Enzymes -- metabolism KW - DNA Repair Enzymes -- genetics KW - DNA-Binding Proteins -- genetics KW - Fanconi Anemia -- enzymology KW - Mutation, Missense KW - Fanconi Anemia -- genetics KW - DNA-Binding Proteins -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1750435121?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+communications&rft.atitle=A+novel+Fanconi+anaemia+subtype+associated+with+a+dominant-negative+mutation+in+RAD51.&rft.au=Ameziane%2C+Najim%3BMay%2C+Patrick%3BHaitjema%2C+Anneke%3Bvan+de+Vrugt%2C+Henri+J%3Bvan+Rossum-Fikkert%2C+Sari+E%3BRistic%2C+Dejan%3BWilliams%2C+Gareth+J%3BBalk%2C+Jesper%3BRockx%2C+Davy%3BLi%2C+Hong%3BRooimans%2C+Martin+A%3BOostra%2C+Anneke+B%3BVelleuer%2C+Eunike%3BDietrich%2C+Ralf%3BBleijerveld%2C+Onno+B%3BMaarten+Altelaar%2C+A+F%3BMeijers-Heijboer%2C+Hanne%3BJoenje%2C+Hans%3BGlusman%2C+Gustavo%3BRoach%2C+Jared%3BHood%2C+Leroy%3BGalas%2C+David%3BWyman%2C+Claire%3BBalling%2C+Rudi%3Bden+Dunnen%2C+Johan%3Bde+Winter%2C+Johan+P%3BKanaar%2C+Roland%3BGelinas%2C+Richard%3BDorsman%2C+Josephine+C&rft.aulast=Ameziane&rft.aufirst=Najim&rft.date=2015-12-18&rft.volume=6&rft.issue=&rft.spage=8829&rft.isbn=&rft.btitle=&rft.title=Nature+communications&rft.issn=2041-1723&rft_id=info:doi/10.1038%2Fncomms9829 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-05-18 N1 - Date created - 2015-12-18 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: EMBO J. 2000 Mar 1;19(5):1148-56 [10698955] Cancer Discov. 2013 Apr;3(4):399-405 [23269703] J Biol Chem. 2002 Apr 26;277(17):14417-25 [11839739] PLoS One. 2013;8(4):e62017 [23620800] Am J Hum Genet. 2013 May 2;92(5):800-6 [23623386] Cold Spring Harb Perspect Biol. 2013 Nov;5(11):a012740 [24097900] Nat Genet. 2014 Mar;46(3):310-5 [24487276] PLoS One. 2014;9(2):e85437 [24586241] Clin Cancer Res. 2014 Sep 15;20(18):4816-26 [24963051] BMC Bioinformatics. 2015;16:27 [25627825] Blood. 2000 Dec 15;96(13):4064-70 [11110674] Br J Haematol. 2004 Jul;126(2):176-91 [15238138] Proc Natl Acad Sci U S A. 2004 Jul 6;101(27):9988-93 [15226506] Nat Struct Mol Biol. 2004 Aug;11(8):791-6 [15235592] Cancer Res. 1982 Oct;42(10):4000-6 [6809308] Blood. 1995 Sep 15;86(6):2156-60 [7662964] Proc Natl Acad Sci U S A. 1996 Jun 25;93(13):6236-40 [8692798] Mol Cell Biol. 1996 Sep;16(9):4782-9 [8756636] J Biol Chem. 1999 Jan 29;274(5):2907-15 [9915828] Nucleic Acids Res. 2005;33(10):3292-302 [15944450] Structure. 2006 Jun;14(6):983-92 [16765891] J Mol Biol. 2006 Jul 14;360(3):537-47 [16782126] FEBS J. 2006 Jul;273(14):3148-59 [16780572] J Med Genet. 2007 Jan;44(1):1-9 [16825431] Nat Genet. 2007 Feb;39(2):159-61 [17200672] Structure. 2007 May;15(5):599-609 [17502105] DNA Repair (Amst). 2008 May 3;7(5):686-93 [18243065] Nucleic Acids Res. 2009 Feb;37(2):557-67 [19066203] Nat Protoc. 2009;4(7):1073-81 [19561590] Bioinformatics. 2009 Jul 15;25(14):1754-60 [19451168] Biochemistry. 2009 Jul 28;48(29):6805-10 [19555119] Mutat Res. 2009 Jul 31;668(1-2):4-10 [19622403] Bioinformatics. 2009 Aug 15;25(16):2078-9 [19505943] Bioinformatics. 2009 Sep 1;25(17):2283-5 [19542151] Science. 2010 Jan 1;327(5961):78-81 [19892942] Cold Spring Harb Protoc. 2009 Jan;2009(1):pdb.prot5120 [20147015] Nat Methods. 2010 Apr;7(4):248-9 [20354512] Nat Genet. 2010 May;42(5):406-9 [20400963] Science. 2010 Apr 30;328(5978):636-9 [20220176] Nat Methods. 2010 Aug;7(8):575-6 [20676075] Nucleic Acids Res. 2010 Sep;38(16):e164 [20601685] Nature. 2010 Oct 28;467(7319):1061-73 [20981092] Annu Rev Genet. 2010;44:113-39 [20690856] DNA Repair (Amst). 2010 Dec 10;9(12):1264-72 [20971042] Nucleic Acids Res. 2011 Jan;39(1):155-67 [20817928] Nat Biotechnol. 2011 Jan;29(1):24-6 [21221095] Nature. 2011 Jul 7;475(7354):45-6 [21734701] Nature. 2011 Jul 7;475(7354):53-8 [21734703] Am J Hum Genet. 2012 Feb 10;90(2):301-7 [22305526] J Clin Invest. 2012 Nov;122(11):3799-806 [23114602] Nature. 2013 Jan 17;493(7432):356-63 [23325218] Cancer Discov. 2015 Feb;5(2):135-42 [25472942] N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1038/ncomms9829 ER - TY - JOUR T1 - Iron mineral structure, reactivity, and isotopic composition in a South Pacific gyre ferromanganese nodule over 4 Ma AN - 1780802415; 2016-032422 AB - Deep-sea ferromanganese nodules accumulate trace elements from seawater and underlying sediment porewaters during the growth of concentric mineral layers over millions of years. These trace elements have the potential to record past ocean geochemical conditions. The goal of this study was to determine whether Fe mineral alteration occurs and how the speciation of trace elements responds to alteration over approximately 3.7 Ma of marine ferromanganese nodule (MFN) formation, a timeline constrained by estimates from (super 9) Be/ (super 10) Be concentrations in the nodule material. We determined Fe-bearing phases and Fe isotope composition in a South Pacific Gyre (SPG) nodule. Specifically, the distribution patterns and speciation of trace element uptake by these Fe phases were investigated. The time interval covered by the growth of our sample of the nodule was derived from (super 9) Be/ (super 10) Be accelerator mass spectrometry (AMS). The composition and distribution of major and trace elements were mapped at various spatial scales, using micro-X-ray fluorescence (mu XRF), electron microprobe analysis (EMPA), and inductively coupled plasma mass spectrometry (ICP-MS). Fe phases were characterized by micro-extended X-ray absorption fine structure (mu EXAFS) spectroscopy and micro-X-ray diffraction (mu XRD). Speciation of Ti and V, associated with Fe, was measured using micro-X-ray absorption near edge structure (mu XANES) spectroscopy. Iron isotope composition (delta (super 56/54) Fe) in subsamples of 1-3 mm increments along the radius of the nodule was determined with multiple-collector ICP-MS (MC-ICP-MS). The SPG nodule formed through primarily hydrogeneous inputs at a rate of 4.0 + or - 0.4 mm/Ma. The nodule exhibited a high diversity of Fe mineral phases: feroxyhite (delta -FeOOH), goethite (alpha -FeOOH), lepidocrocite (gamma -FeOOH), and poorly ordered ferrihydrite-like phases. These findings provide evidence that Fe oxyhydroxides within the nodule undergo alteration to more stable phases over millions of years. Trace Ti and V were spatially correlated with Fe and found to be adsorbed to Fe-bearing minerals. Ti/Fe and V/Fe ratios, and Ti and V speciation, did not vary along the nodule radius. The delta (super 56/54) Fe values, when averaged over sample increments representing 0.25-0.75 Ma, were homogeneous within uncertainty along the nodule radius, at -0.12 + or - 0.07 ppm (2sd, n = 10). Our results indicate that the Fe isotope composition of the nodule remained constant during nodule growth and that mineral alteration did not affect the primary Fe isotope composition of the nodule. Furthermore, the average delta (super 56/54) Fe value of -0.12 ppm we find is consistent with Fe sourced from continental eolian particles (dust). Despite mineral alteration, the trace element partitioning of Ti and V, and Fe isotope composition, do not appear to change within the sensitivity of our measurements. These findings suggest that Fe oxyhydroxides within hydrogenetic ferromanganese nodules are out of geochemical contact with seawater once they are covered by subsequent concentric mineral layers. Even though Fe-bearing minerals are altered, trace element ratios, speciation and Fe isotope composition are preserved within the nodule. Abstract Copyright (2015) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Marcus, Matthew A AU - Edwards, Katrina J AU - Gueguen, Bleuenn AU - Fakra, Sirine C AU - Horn, Gregory AU - Jelinski, Nicolas A AU - Rouxel, Olivier AU - Sorensen, Jeffry AU - Toner, Brandy M Y1 - 2015/12/15/ PY - 2015 DA - 2015 Dec 15 SP - 61 EP - 79 PB - Elsevier, New York, NY VL - 171 SN - 0016-7037, 0016-7037 KW - alteration KW - sea water KW - X-ray diffraction data KW - isotopes KW - nodules KW - mass spectra KW - deep-sea environment KW - stable isotopes KW - layered materials KW - iron KW - ferromanganese composition KW - XANES spectra KW - accelerator mass spectra KW - marine sediments KW - radioactive isotopes KW - dates KW - sediments KW - absolute age KW - X-ray fluorescence spectra KW - spectra KW - trace elements KW - chemical composition KW - Be-10/Be-9 KW - currents KW - alkaline earth metals KW - Be-10 KW - isotope ratios KW - electron microscopy data KW - South Pacific KW - X-ray spectra KW - South Pacific gyre KW - ocean currents KW - ICP mass spectra KW - titanium KW - metals KW - marine environment KW - Pacific Ocean KW - EXAFS data KW - Fe-56/Fe-54 KW - SEM data KW - beryllium KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780802415?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Iron+mineral+structure%2C+reactivity%2C+and+isotopic+composition+in+a+South+Pacific+gyre+ferromanganese+nodule+over+4+Ma&rft.au=Marcus%2C+Matthew+A%3BEdwards%2C+Katrina+J%3BGueguen%2C+Bleuenn%3BFakra%2C+Sirine+C%3BHorn%2C+Gregory%3BJelinski%2C+Nicolas+A%3BRouxel%2C+Olivier%3BSorensen%2C+Jeffry%3BToner%2C+Brandy+M&rft.aulast=Marcus&rft.aufirst=Matthew&rft.date=2015-12-15&rft.volume=171&rft.issue=&rft.spage=61&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2015.08.021 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 87 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-04-14 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - absolute age; accelerator mass spectra; alkaline earth metals; alteration; Be-10; Be-10/Be-9; beryllium; chemical composition; currents; dates; deep-sea environment; electron microscopy data; EXAFS data; Fe-56/Fe-54; ferromanganese composition; ICP mass spectra; iron; isotope ratios; isotopes; layered materials; marine environment; marine sediments; mass spectra; metals; nodules; ocean currents; Pacific Ocean; radioactive isotopes; sea water; sediments; SEM data; South Pacific; South Pacific gyre; spectra; stable isotopes; titanium; trace elements; X-ray diffraction data; X-ray fluorescence spectra; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/j.gca.2015.08.021 ER - TY - JOUR T1 - Development of a discontinuous approach for modeling fluid flow in heterogeneous media using the numerical manifold method AN - 1840619560; 2016-095615 AB - In the numerical modeling of fluid flow in heterogeneous geological media, large material contrasts associated with complexly intersected material interfaces are challenging, not only related to mesh discretization but also for the accurate realization of the corresponding boundary constraints. To address these challenges, we developed a discontinuous approach for modeling fluid flow in heterogeneous media using the numerical manifold method (NMM) and the Lagrange multiplier method (LMM) for modeling boundary constraints. The advantages of NMM include meshing efficiency with fixed mathematical grids (covers), the convenience of increasing the approximation precision, and the high integration precision provided by simplex integration. In this discontinuous approach, the elements intersected by material interfaces are divided into different elements and linked together using the LMM. We derive and compare different forms of LMMs and arrive at a new LMM that is efficient in terms of not requiring additional Lagrange multiplier topology, yet stringently derived by physical principles, and accurate in numerical performance. To demonstrate the accuracy and efficiency of the NMM with the developed LMM for boundary constraints, we simulate a number of verification and demonstration examples, involving a Dirichlet boundary condition and dense and intersected material interfaces. Last, we applied the developed model for modeling fluid flow in heterogeneous media with several material zones containing a fault and an opening. We show that the developed discontinuous approach is very suitable for modeling fluid flow in strongly heterogeneous media with good accuracy for large material contrasts, complex Dirichlet boundary conditions, or complexly intersected material interfaces. Copyright Copyright 2015 John Wiley & Sons, Ltd. JF - International Journal for Numerical and Analytical Methods in Geomechanics AU - Hu, Mengsu AU - Wang, Yuan AU - Rutqvist, Jonny Y1 - 2015/12/10/ PY - 2015 DA - 2015 Dec 10 SP - 1932 EP - 1952 PB - Wiley, Chichester VL - 39 IS - 17 SN - 0363-9061, 0363-9061 KW - soil mechanics KW - hydraulics KW - numerical models KW - Darcy's law KW - fluid flow KW - simulation KW - boundary conditions KW - finite element analysis KW - physical properties KW - heterogeneous materials KW - topology KW - permeability KW - dynamic properties KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840619560?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+for+Numerical+and+Analytical+Methods+in+Geomechanics&rft.atitle=Development+of+a+discontinuous+approach+for+modeling+fluid+flow+in+heterogeneous+media+using+the+numerical+manifold+method&rft.au=Hu%2C+Mengsu%3BWang%2C+Yuan%3BRutqvist%2C+Jonny&rft.aulast=Hu&rft.aufirst=Mengsu&rft.date=2015-12-10&rft.volume=39&rft.issue=17&rft.spage=1932&rft.isbn=&rft.btitle=&rft.title=International+Journal+for+Numerical+and+Analytical+Methods+in+Geomechanics&rft.issn=03639061&rft_id=info:doi/10.1002%2Fnag.2390 L2 - http://www3.interscience.wiley.com/journal/3312/home LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 46 N1 - Document feature - illus. N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - boundary conditions; Darcy's law; dynamic properties; finite element analysis; fluid flow; heterogeneous materials; hydraulics; numerical models; permeability; physical properties; simulation; soil mechanics; topology DO - http://dx.doi.org/10.1002/nag.2390 ER - TY - JOUR T1 - Circular Dichroism in Off-Resonantly Coupled Plasmonic Nanosystems. AN - 1747305076; 26569468 AB - Chiral plasmonic systems have been shown to exhibit large chiroptical responses, much larger than those found in molecular or solid state systems. In this Letter, we investigate the role of resonant coupling in such systems and whether the formation of collective plasmonic modes in a chiral assembly of metallic nanostructures is a necessary condition for chiroptical response. We show in experiment and simulation that off-resonant coupling between spectrally detuned nanostructures arranged with structural chirality leads to a clear but weak chiroptical response. We interpret our results in the framework of scattering between the individual constituents that in turn leads to a chiroptical farfield response. We envision that our results will allow further tuning and manipulation of chiroptical responses in plasmonic systems for tailored chiral light matter interaction. JF - Nano letters AU - Ferry, Vivian E AU - Hentschel, Mario AU - Alivisatos, A Paul AD - Department of Chemical Engineering and Materials Science, University of Minnesota-Twin Cities , 421 Washington Ave SE, Minneapolis, Minnesota 55455, United States. ; Materials Science Division, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States. Y1 - 2015/12/09/ PY - 2015 DA - 2015 Dec 09 SP - 8336 EP - 8341 VL - 15 IS - 12 KW - surface plasmons KW - chirality KW - circular dichroism KW - plasmon hybridization UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1747305076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nano+letters&rft.atitle=Circular+Dichroism+in+Off-Resonantly+Coupled+Plasmonic+Nanosystems.&rft.au=Ferry%2C+Vivian+E%3BHentschel%2C+Mario%3BAlivisatos%2C+A+Paul&rft.aulast=Ferry&rft.aufirst=Vivian&rft.date=2015-12-09&rft.volume=15&rft.issue=12&rft.spage=8336&rft.isbn=&rft.btitle=&rft.title=Nano+letters&rft.issn=1530-6992&rft_id=info:doi/10.1021%2Facs.nanolett.5b03970 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-04-20 N1 - Date created - 2015-12-09 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1021/acs.nanolett.5b03970 ER - TY - JOUR T1 - All-Iron Redox Flow Battery Tailored for Off-Grid Portable Applications. AN - 1744663209; 26586284 AB - An all-iron redox flow battery is proposed and developed for end users without access to an electricity grid. The concept is a low-cost battery which the user assembles, discharges, and then disposes of the active materials. The design goals are: (1) minimize upfront cost, (2) maximize discharge energy, and (3) utilize non-toxic and environmentally benign materials. These are different goals than typically considered for electrochemical battery technology, which provides the opportunity for a novel solution. The selected materials are: low-carbon-steel negative electrode, paper separator, porous-carbon-paper positive electrode, and electrolyte solution containing 0.5 m Fe2 (SO4 )3 active material and 1.2 m NaCl supporting electrolyte. With these materials, an average power density around 20 mW cm(-2) and a maximum energy density of 11.5 Wh L(-1) are achieved. A simple cost model indicates the consumable materials cost US$6.45 per kWh(-1) , or only US$0.034 per mobile phone charge. JF - ChemSusChem AU - Tucker, Michael C AU - Phillips, Adam AU - Weber, Adam Z AD - Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd. MS70-108b, Berkeley, CA, 94720, USA. mctucker@lbl.gov. ; Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd. MS70-108b, Berkeley, CA, 94720, USA. Y1 - 2015/12/07/ PY - 2015 DA - 2015 Dec 07 SP - 3996 EP - 4004 VL - 8 IS - 23 KW - Carbon KW - 7440-44-0 KW - Iron KW - E1UOL152H7 KW - Index Medicus KW - batteries KW - iron KW - energy conversion KW - electrochemistry KW - Oxidation-Reduction KW - Porosity KW - Electrodes KW - Electrochemistry KW - Carbon -- chemistry KW - Electric Power Supplies KW - Iron -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1744663209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ChemSusChem&rft.atitle=All-Iron+Redox+Flow+Battery+Tailored+for+Off-Grid+Portable+Applications.&rft.au=Tucker%2C+Michael+C%3BPhillips%2C+Adam%3BWeber%2C+Adam+Z&rft.aulast=Tucker&rft.aufirst=Michael&rft.date=2015-12-07&rft.volume=8&rft.issue=23&rft.spage=3996&rft.isbn=&rft.btitle=&rft.title=ChemSusChem&rft.issn=1864-564X&rft_id=info:doi/10.1002%2Fcssc.201500845 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2016-09-12 N1 - Date created - 2015-12-04 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-23 DO - http://dx.doi.org/10.1002/cssc.201500845 ER - TY - JOUR T1 - Cryogenic fracturing; laboratory visualization experiments and numerical simulations using peridynamics AN - 1849311131; 2016-109399 AB - Typical hydraulic fracturing operations involve the use of a large quantity of water, which can be problematic for several reasons including possible formation (permeability) damage, disposal of waste water, and the use of precious local water resource. An alternate reservoir permeability enhancing technology not requiring water is cryogenic fracturing. This method induces controlled fracturing of rock formations by thermal shock and has potentially important applications in the geothermal and hydrocarbon industries. In this process, cryogenic fluid-such as liquid nitrogen-is injected into the subsurface, causing fracturing due to thermal gradients. These fractures may improve the formation permeability relative to that achievable by hydraulic fracturing alone. We conducted combined laboratory visualization and numerical simulations studies of thermal-shock-induced fracture initiation and propagation resulting from liquid nitrogen injection in rock and analog materials. The experiment used transparent soda-lime glass cubes to facilitate real-time visualization of fracture growth and the fracture network geometry. In this contribution, we report the effect of overall temperature difference between cryogenic fluid and solid material on the produced fracture network, by pre-heating the glass cubes to several temperatures and injecting liquid nitrogen. Temperatures are monitored at several points by thermocouple and the fracture evolution is captured visually by camera. The experiment was modeled using a customized, thermoelastic, fracture-capable numerical simulation code based on peridynamics. The performance of the numerical code was validated by the results of the laboratory experiments, and then the code was used to study the different factors affecting a cryogenic fracturing operation, including the evolution of residual stresses and constitutive relationships for material failure. In complex rock such as shale, understanding the process of cryogenic fracturing in the field is difficult, and the involved cost can be very high. The laboratory experiments and the numerical modeling can provide valuable information for understanding the fundamental processes involved with the fracturing operation. JF - American Geophysical Union Fall Meeting AU - Martin-Short, Robert AU - Edmiston, John Kearney AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H51M EP - 1567 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849311131?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Cryogenic+fracturing%3B+laboratory+visualization+experiments+and+numerical+simulations+using+peridynamics&rft.au=Martin-Short%2C+Robert%3BEdmiston%2C+John+Kearney%3BAnonymous&rft.aulast=Martin-Short&rft.aufirst=Robert&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Coupled monitoring and inverse modeling to investigate surface-subsurface hydrological and thermal dynamics in the Arctic tundra AN - 1849310950; 2016-109248 AB - Quantitative characterization of the soil surface-subsurface hydrological and thermal processes is essential as they are primary factors that control the biogeochemical processes, ecological landscapes and greenhouse gas fluxes. In the Artic region, the surface-subsurface hydrological and thermal regimes co-interact and are both largely influenced by soil texture and soil organic content. In this study, we present a coupled inversion scheme that jointly inverts hydrological, thermal and geophysical data to estimate the vertical profiles of clay, sand and organic contents. Within this inversion scheme, the Community Land Model (CLM4.5) serves as a forward model to simulate the land-surface energy balance and subsurface hydrological-thermal processes. Soil electrical conductivity (from electrical resistivity tomography), temperature and water content are linked together via petrophysical and geophysical models. Particularly, the inversion scheme accounts for the influences of the soil organic and mineral content on both of the hydrological-thermal dynamics and the petrophysical relationship. We applied the inversion scheme to the Next Generation Ecosystem Experiments (NGEE) intensive site in Barrow, AK, which is characterized by polygonal-shaped arctic tundra. The monitoring system autonomously provides a suite of above-ground measurements (e.g., precipitation, air temperature, wind speed, short-long wave radiation, canopy greenness and eddy covariance) as well as below-ground measurements (soil moisture, soil temperature, thaw layer thickness, snow thickness and soil electrical conductivity), which complement other periodic, manually collected measurements. The preliminary results indicate that the model can well reproduce the spatiotemporal dynamics of the soil temperature, and therefore, accurately predict the active layer thickness. The hydrological and thermal dynamics are closely linked to the polygon types and polygon features. The results also enable the quantification of the role of organic material in hydrological - thermal processes in the Arctic region. JF - American Geophysical Union Fall Meeting AU - Anh Phuong, Tran AU - Dafflon, Baptiste AU - Hubbard, Susan S AU - Bisht, Gautam AU - Peterson, John AU - Ulrich, Craig AU - Romanovsky, Vladimir E AU - Kneafsey, Timothy J AU - Wu, Yuxin AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H13E EP - 1596 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310950?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Coupled+monitoring+and+inverse+modeling+to+investigate+surface-subsurface+hydrological+and+thermal+dynamics+in+the+Arctic+tundra&rft.au=Anh+Phuong%2C+Tran%3BDafflon%2C+Baptiste%3BHubbard%2C+Susan+S%3BBisht%2C+Gautam%3BPeterson%2C+John%3BUlrich%2C+Craig%3BRomanovsky%2C+Vladimir+E%3BKneafsey%2C+Timothy+J%3BWu%2C+Yuxin%3BAnonymous&rft.aulast=Anh+Phuong&rft.aufirst=Tran&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Integrated technology for deep boreholes; modular borehole monitoring AN - 1849310933; 2016-109281 AB - Understanding the impacts caused by engineered activities in the deep subsurface, such as waste disposal, necessitates a comprehensive borehole monitoring strategy. Similarly, characterization of continental subsurface properties for scientific understanding requires optimal use of deep boreholes. While surface-based and other remote geophysical methods can provide information on the structure, lithology and properties of subsurface formations, the scale of investigation is typically large and some properties require direct measurement, e.g. verification of the geochemical conditions. Validation of remote sensing data, along with increasing data spatial resolution, requires measurements from boreholes that penetrate the formations of interest. Unfortunately, the high cost of drilling deep wellbores and deploying instrumentation systems constrains the number of dedicated monitoring borings as well as limits the technologies that can be incorporated in a borehole completion. We recently completed a Modular Borehole Monitoring (MBM) Program to develop a robust suite of well-based tools optimized for subsurface monitoring of CO (sub 2) injected into sedimentary basins. These tools included seismic sensing, temperature sensing, in-situ fluid sampling and in-situ fluid pressure measurement. as part of a comprehensive well-based monitoring program. Characterization of crystalline rock requires a similar suite of tools. A MBM system should have enough flexibility to be easily reconfigured for various borehole geometries and geologies. The MBM Program sought to provide operators with a turn-key, fully engineered design that incorporated key technologies, could function over the long time-span necessary for monitoring engineered activities, and meet industry acceptable risk profiles for deep-well installations. We will present design information and monitoring results from previous installations and discuss needs for crystalline rock monitoring. JF - American Geophysical Union Fall Meeting AU - Daley, Thomas M AU - Freifeld, Barry M AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H13M EP - 02 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310933?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Integrated+technology+for+deep+boreholes%3B+modular+borehole+monitoring&rft.au=Daley%2C+Thomas+M%3BFreifeld%2C+Barry+M%3BAnonymous&rft.aulast=Daley&rft.aufirst=Thomas&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - A hybrid continuum-discrete scheme for simulating CO (sub 2) migration and trapping in fractured sandstone reservoirs AN - 1849310843; 2016-109494 AB - Supercritical CO2 (scCO2) injected into fractured sandstone reservoirs, such as at the In Salah site in Algeria, flows preferentially through the fracture network and invades into the rock matrix if matrix permeability is sufficiently high and capillary entry pressure is sufficiently low. The invading scCO2 displaces resident brine in the matrix downgradient, allowing for additional scCO2 matrix storage. The displaced brine crosses matrix bridges and brine-filled small-aperture regions within fractures between neighboring matrix blocks. To account for preferential scCO2 flow through fractures, scCO2 invasion into the rock matrix, and cross-fracture brine flow, we propose a hybrid continuum-discrete scheme with one fracture continuum (F) and multiple matrix continua (M1 through Mn). The scheme allows for global F-F flow through fractures, local F-M1 flow for scCO2 invasion, local Mi-Mi+1 brine and scCO2 flow, and global Mn-Mn brine flow. The proposed scheme differs from existing continuum-based dual-porosity, dual-permeability, and multiple interacting continua (MINC) schemes in that the matrix-matrix connectivity via bridges and brine-filled regions is considered explicitly, while the existing schemes allow either 0 (e.g., dual-porosity) or 100% (e.g., dual-permeability) matrix-matrix connectivity. The proposed scheme is implemented in the multi-phase multi-component simulator TOUGH2 and demonstrated on a hypothetical, large-scale scCO2 injection and storage case. A sensitivity analysis on different driving forces for fracture-matrix interactions is conducted in both homogeneous and heterogeneous fractures and matrix. It is found that in a thick reservoir, buoyancy enhances scCO2 invasion from fractures into the rock matrix, driving global matrix-matrix brine flow. Without scCO2 invasion into the matrix, the storage capacity and efficiency of CO2 in fractured sandstone, which are proportional to formation compressibility and pressure increase, is small. JF - American Geophysical Union Fall Meeting AU - Zhou, Quanlin AU - Birkholzer, Jens T AU - Oldenburg, Curtis M AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H54F EP - 07 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+hybrid+continuum-discrete+scheme+for+simulating+CO+%28sub+2%29+migration+and+trapping+in+fractured+sandstone+reservoirs&rft.au=Zhou%2C+Quanlin%3BBirkholzer%2C+Jens+T%3BOldenburg%2C+Curtis+M%3BAnonymous&rft.aulast=Zhou&rft.aufirst=Quanlin&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - A new approach to hydrologic testing during drilling of a deep borehole and its application to the Swedish scientific deep drilling COSC project AN - 1849310760; 2016-109282 AB - Drilling of a deep borehole does not normally allow for hydrogeologic testing during the drilling period. The only time hydraulic tests are performed is when drilling encounters a large-transmissivity zone as evidenced by a large loss (or high return) of drilling fluid. The present paper proposes a new approach, that of conducting Flowing Fluid Electric Conductivity (FFEC) logging during the drilling period, with negligible impact on drilling schedule, yet providing important and accurate information on depth locations of both high- and low-transmissivity zones and their in-situ hydraulic conductivities. The information can be used to guide downhole fluid sampling and post-drilling detailed testing of the borehole. The proposed method has been applied to the drilling of a 2500-m borehole at Are, Northern Sweden, which was initiated on April 28 and completed on August 26, 2014, with 99% core recovery. This borehole, named COSC-1, was drilled as part of the Swedish Scientific Deep Drilling COSC project, where COSC stands for Collisional Orogeny in the Scandinavian Caledonides. The project is a multidisciplinary project with the aim of gaining a deeper understanding of mountain belt dynamics in the Scandinavian Caledonides. Scientific investigations which include a range of topics from studies of ancient orogeny to the present-day hydrological cycle are conducted under six working groups: (1) tectonics, (2) geophysics, (3) geothermics, (4) hydrology, (5) microbiology and (6) drilling management and technology. In this talk, the new approach to hydrologic testing during the drilling period will be described and its application to the drilling of COSC-1 borehole presented. Results show that from 300 m to the borehole bottom at 2500 m, there are eight hydraulically active zones or fractures in COSC-1, with very low transmissivity values ranging over one order of magnitude. JF - American Geophysical Union Fall Meeting AU - Tsang, Chin Fu AU - Rosberg, Jan-Erik AU - Juhlin, Christopher AU - Niemi, Auli P AU - Doughty, Christine AU - Dobson, Patrick F AU - Birkholzer, Jens T AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H13M EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310760?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+new+approach+to+hydrologic+testing+during+drilling+of+a+deep+borehole+and+its+application+to+the+Swedish+scientific+deep+drilling+COSC+project&rft.au=Tsang%2C+Chin+Fu%3BRosberg%2C+Jan-Erik%3BJuhlin%2C+Christopher%3BNiemi%2C+Auli+P%3BDoughty%2C+Christine%3BDobson%2C+Patrick+F%3BBirkholzer%2C+Jens+T%3BAnonymous&rft.aulast=Tsang&rft.aufirst=Chin&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - XMCD and XAS examination of cation ordering in synthetic Mg- and Al-substituted titanomagnetites AN - 1849310623; 2016-109174 AB - Many paleomagnetic studies use natural magnetic minerals of the titanomagnetite (TM) solid solution series (Fe (sub 3-x) Ti (sub x) O4, 0 150 degrees C on timescales and at temperatures relevant to laboratory and geological processes were observed (Bowles et al. 2013). These variations in TC are thought to result from cation reordering within the crystal lattice. Those processes may have major effects on the acquisition, retention and demagnetisation of partial TRM and thermoviscous remanence and may have significant consequences for many paleomagnetic studies. However, so far no direct evidence for this cation reordering has been established. To gain further insight into the mechanisms at work, we have synthesised TMs of varying Ti-content (0.25 < or = x < or = 60) and with different degrees of Al- and Mg- substitution. Measuring the magnetic susceptibility as function of temperature T (sub C) was determined. Subsequently the samples were subjected to isothermal annealing at temperatures between 325-400 degrees C for 10 to 10 (super 3) hours. We observe an increase of TC on warming with anneal time up to 80 degrees , whereas TC on cooling decreases slightly. The magnitude of the change in TC on warming varies with anneal temperature, and the temperature of maximum change depends on composition. Splits of the samples were studied using X-ray magnetic circular dichroism (XMCD) of the Fe L (sub 2,3) -edge, which is sensitive to valence state and site occupancy of the Fe cations. The results suggest different Fe (super 2+) /Fe (super 3+) site occupancy for different sample compositions but there seem to be no consistent differences between the XMCD spectra of annealed and un-annealed samples of one composition. X-ray absorption spectra (XAS) of the Ti, Mg and Al show no significant differences for samples of different anneal stages, suggesting no reordering of the Ti (super 4+) , Al (super 3+) and Mg (super 2+) . The lack of observed (re)ordering between A and B lattice sites suggests the process may be vacancy mediated or there might be short-range cation (re)ordering within the lattice sites. JF - American Geophysical Union Fall Meeting AU - Lappe, Sophie Charlotte Luise Leonore AU - Bowles, Julie AU - Jackson, M AU - Arenholz, Elke AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract GP43A EP - 1237 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310623?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=XMCD+and+XAS+examination+of+cation+ordering+in+synthetic+Mg-+and+Al-substituted+titanomagnetites&rft.au=Lappe%2C+Sophie+Charlotte+Luise+Leonore%3BBowles%2C+Julie%3BJackson%2C+M%3BArenholz%2C+Elke%3BAnonymous&rft.aulast=Lappe&rft.aufirst=Sophie+Charlotte+Luise&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Model-based analysis of push-pull experiments in deep aquifers to predict large-scale impacts of CSG product water reinjection AN - 1849310604; 2016-109460 AB - Over the next two decades coal seam gas production in Australia will require the management of large quantities of production water. For some sites the most viable option is to treat the water to a high standard via reverse osmosis (RO) and to inject it into deep aquifers. The design and implementation of these field-scale injection schemes requires a thorough understanding of the anticipated water quality changes within the target aquifers. In this study we use reactive transport modeling to integrate the results of a multi-scale hydrogeological and geochemical characterization, and to analyze a series of short-term push-pull experiments with the aim to better understand and reliably accurately predict long-term water quality evolution and the risks for mobilizing geogenic arsenic. Sequential push-pull tests with varying injectant compositions were undertaken, with concentrations recorded during the recovery phase reaching levels of up to 180 ppb above the ambient concentrations observed prior to the push-pull experiments. The highest As concentrations were observed in conjunction with the injection of aerobic water, while de-oxygenation of the injectant lowered As concentrations significantly. The lowest As concentrations were observed when the injectant was de-oxygenated and acid-amended. The latter was underpinned by complementary laboratory As sorption experiments using sediments from the target aquifer at various pHs, which, consistent with literature, show a decrease in As sorption affinity under alkaline conditions. In the model-based analysis of the experimental data, model parameters for each conceptual model variant were estimated through an automatic calibration procedure using Particle Swarm Optimization (PSO) whereby bromide and temperature data were used to constrain flow, solute and heat transport parameters. A series of predictive model scenarios were performed to determine whether advanced manipulation of the injectant composition is required. JF - American Geophysical Union Fall Meeting AU - Prommer, Henning AU - Rathi, Bhasker AU - Morris, Ryan AU - Helm, Lauren AU - Siade, Adam J AU - Davis, James A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H53K EP - 01 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310604?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Model-based+analysis+of+push-pull+experiments+in+deep+aquifers+to+predict+large-scale+impacts+of+CSG+product+water+reinjection&rft.au=Prommer%2C+Henning%3BRathi%2C+Bhasker%3BMorris%2C+Ryan%3BHelm%2C+Lauren%3BSiade%2C+Adam+J%3BDavis%2C+James+A%3BAnonymous&rft.aulast=Prommer&rft.aufirst=Henning&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - The DOE subsurface (SubTER) initiative; revolutionizing responsible use of the subsurface for energy production and storage AN - 1849310478; 2016-109393 AB - The subsurface supplies more than 80% of the U.S.'s total energy needs through geothermal and hydrocarbon strategies and also provides vast potential for safe storage of CO (sub 2) and disposal of nuclear waste. Responsible and efficient use of the subsurface poses many challenges, many of which require the capability to monitor and manipulate sub-surface stress, fractures, and fluid flow at all scales. Adaptive control of subsurface fractures and flow is a multi-disciplinary challenge that, if achieved, has the potential to transform all subsurface energy strategies. As part of the U.S. Department of Energy's SubTER (Subsurface Technology and Engineering Research development and demonstration) initiative, a multi-National Laboratory team is developing next-generation approaches that will allow for adaptive control of subsurface fractures and flow. SubTER has identified an initial suite of technical thrust areas to focus work, and has initiated a number of small projects. This presentation will describe early progress associated with the SubTER technical topic areas of wellbore integrity, subsurface stress and induced seismicity, permeability manipulation and new subsurface signals. It will also describe SubTER plans, and provide a venue to solicit suggestions and discuss potential partnerships associated with future research directions. JF - American Geophysical Union Fall Meeting AU - Hubbard, Susan S AU - Walck, Marianne C AU - Blankenship, Doug AU - Bonneville, Alain AU - Bromhal, Grant S AU - Daley, Thomas M AU - Pawar, Rajesh AU - Polsky, Yarom AU - Mattson, Earl AU - Mellors, Roberts J AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H51M EP - 1561 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+DOE+subsurface+%28SubTER%29+initiative%3B+revolutionizing+responsible+use+of+the+subsurface+for+energy+production+and+storage&rft.au=Hubbard%2C+Susan+S%3BWalck%2C+Marianne+C%3BBlankenship%2C+Doug%3BBonneville%2C+Alain%3BBromhal%2C+Grant+S%3BDaley%2C+Thomas+M%3BPawar%2C+Rajesh%3BPolsky%2C+Yarom%3BMattson%2C+Earl%3BMellors%2C+Roberts+J%3BAnonymous&rft.aulast=Hubbard&rft.aufirst=Susan&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Low-frequency shear measurements on fractured samples to determine detectability of fractures at various stress conditions AN - 1849310467; 2016-109402 AB - In the subsurface energy community there is increasing interest in identifying and characterizing fractures (both natural and engineered) in reservoirs using field seismic techniques. The threshold of detection depends on fracture specific stiffness, acoustic impedance, and attenuation (both intrinsic and scattering) in the surrounding medium. The frequency of the probing seismic wave is therefore important. The simplest way to estimate detection conditions is by computing reflection and transmission coefficients and how they change with varying stiffness. In this setting we imagine that the stiffness is dominated by the asperity contact area, which is in turn a function of effective stress. We have adapted a low-frequency (1-64 Hz) sub-resonance torsional shear system, capable of measuring shear modulus and attenuation, to explore the seismic signature of fractures in order to interpret field data from fractured reservoirs. Since the apparatus operates quasi-statically, we eliminate scattering effects. Our instrument is unique in its ability to measure at low normal stresses, simulating 'open' fractures in shallow or high fluid pressure reservoirs. We present calibration data that shows the accuracy of our instrument, and measurements from artificially fractured dry granite and rhyolite samples. By measuring the samples before and after fracturing under various normal stresses, we can separate the compliance of the rock from the compliance of the fracture. This method allows us to study well mated 'closed' fractures (stiffness about 40% of the intact shear modulus), until they are nearly open (<1%). With this data we calculate the reflectivity of the fracture in a field setting with varying effective stress, showing at what conditions we would expect to be able to detect fractures seismically. JF - American Geophysical Union Fall Meeting AU - Saltiel, Seth AU - Bonner, Brian P AU - Ajo Franklin, Jonathan Blair AU - Selvadurai, Paul A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H51M EP - 1570 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310467?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Low-frequency+shear+measurements+on+fractured+samples+to+determine+detectability+of+fractures+at+various+stress+conditions&rft.au=Saltiel%2C+Seth%3BBonner%2C+Brian+P%3BAjo+Franklin%2C+Jonathan+Blair%3BSelvadurai%2C+Paul+A%3BAnonymous&rft.aulast=Saltiel&rft.aufirst=Seth&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Automated QA/QC for data management, curation, and standardization of hydrological, meteorological, and biogeochemical datasets at the Rifle field site AN - 1849310309; 2016-109346 AB - As part of the U.S. Department of Energy (DOE) "Genomes to Watershed" Science Focus Area field effort at the Rifle site in Colorado, USA, sensor-based hydrological and meteorological datasets and data from laboratory characterization of groundwater samples have been curated and archived in a database (http://ifrcrifle.org). We have developed automated quality assurance (QA) and quality control (QC) methods to detect and identify errors made while recording, manipulating, formatting, transmitting and archiving data, or due to the malfunctioning of sensors. The focus was on developing and implementing basic QA/QC for the DOE Legacy Management installed SOARS network that collects data from the water-level pressure transducers, vadose zone and groundwater thermistors, as well as the meteorological stations. We developed and implemented QA/QC procedures to identify and flag the sources of erroneous data and cleaned up the water-level time series data using outlier filtering methods. Based on the analysis of field water-level data, we provided recommendations on the reinstallation and calibration of pressure transducers installed in monitoring wells. Additionally, in support of the QC of the geochemical dataset, we developed an approach of flagging the samples based on the evaluation of ionic balance of water samples. We also advanced a visualization system to allow users to plot and download raw data and perform QA/QC of time series data masked by the quality flags. JF - American Geophysical Union Fall Meeting AU - Versteeg, Roelof J AU - Faybishenko, Boris AU - Varadharajan, Charuleka AU - Agarwal, Deb AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H51G EP - 1467 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Automated+QA%2FQC+for+data+management%2C+curation%2C+and+standardization+of+hydrological%2C+meteorological%2C+and+biogeochemical+datasets+at+the+Rifle+field+site&rft.au=Versteeg%2C+Roelof+J%3BFaybishenko%2C+Boris%3BVaradharajan%2C+Charuleka%3BAgarwal%2C+Deb%3BAnonymous&rft.aulast=Versteeg&rft.aufirst=Roelof&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Quantifying subsurface water and heat distribution and its linkage with landscape properties in terrestrial environment using hydro-thermal-geophysical monitoring and coupled inverse modeling AN - 1849305326; 2016-109478 AB - Quantifying water and heat fluxes in the subsurface is crucial for managing water resources and for understanding the terrestrial ecosystem where hydrological properties drive a variety of biogeochemical processes across a large range of spatial and temporal scales. Here, we present the development of an advanced monitoring strategy where hydro-thermal-geophysical datasets are continuously acquired and further involved in a novel inverse modeling framework to estimate the hydraulic and thermal parameter that control heat and water dynamics in the subsurface and further influence surface processes such as evapotranspiration and vegetation growth. The measured and estimated soil properties are also used to investigate co-interaction between subsurface and surface dynamics by using above-ground aerial imaging. The value of this approach is demonstrated at two different sites, one in the polygonal shaped Arctic tundra where water and heat dynamics have a strong impact on freeze-thaw processes, vegetation and biogeochemical processes, and one in a floodplain along the Colorado River where hydrological fluxes between compartments of the system (surface, vadose zone and groundwater) drive biogeochemical transformations. Results show that the developed strategy using geophysical, point-scale and aerial measurements is successful to delineate the spatial distribution of hydrostratigraphic units having distinct physicochemical properties, to monitor and quantify in high resolution water and heat distribution and its linkage with vegetation, geomorphology and weather conditions, and to estimate hydraulic and thermal parameters for enhanced predictions of water and heat fluxes as well as evapotranspiration. Further, in the Colorado floodplain, results document the potential presence of only periodic infiltration pulses as a key hot moment controlling soil hydro and biogeochemical functioning. In the arctic, results show the strong linkage between soil water content, thermal parameters, thaw layer thickness and vegetation distribution. Overall, results of these efforts demonstrate the value of coupling various datasets at high spatial and temporal resolution to improve predictive understanding of subsurface and surface dynamics. JF - American Geophysical Union Fall Meeting AU - Dafflon, Baptiste AU - Anh Phuong, Tran AU - Wainwright, Haruko M AU - Hubbard, Susan S AU - Peterson, John AU - Ulrich, Craig AU - Williams, Kenneth Hurst AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H54B EP - 02 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849305326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Quantifying+subsurface+water+and+heat+distribution+and+its+linkage+with+landscape+properties+in+terrestrial+environment+using+hydro-thermal-geophysical+monitoring+and+coupled+inverse+modeling&rft.au=Dafflon%2C+Baptiste%3BAnh+Phuong%2C+Tran%3BWainwright%2C+Haruko+M%3BHubbard%2C+Susan+S%3BPeterson%2C+John%3BUlrich%2C+Craig%3BWilliams%2C+Kenneth+Hurst%3BAnonymous&rft.aulast=Dafflon&rft.aufirst=Baptiste&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Experimental and numerical demonstration of anomalous enhanced backscatter by subsurface spherical dielectric anomalies AN - 1849298231; 2016-105769 AB - Anomalous signal enhancement appears in ground-penetrating radar (GPR) profiles recorded over electrically resistive ground containing dielectric anomalies. Examples of the ground matrix include sands, glacial till, sub-lacustrine diamicton, glaciers and even icy moons. The likely anomalies are cylindrical or spherical water-filled conduits, boulders or saturation bulbs. In such cases refractive focusing within the anomaly may be the cause, whereby waves propagating along the curved surface continually refract along short cuts through the anomaly, which results in enhanced backscatter that emanates from the near the anomaly base. Although Mie scattering and optical ray path propagation of this phenomenon are well understood, the associated backscatter attributes of amplitude, dispersion and phase are not conceptually obvious from the mathematics. Here we try to provide some understanding of these attributes with theory, laboratory experiments with GPR pulses and higher permittivity spheres buried in lower permittivity sand, and numerical models that simulate the experiments. Our experiments clearly show amplitude enhancement of waves whose time delay is predicted by the surface wave explanation, yet with an unexpected reversal of waveform phase polarity. Theoretically we provide a geometrical model that predicts the position of the focal point as a function of the geometric and dielectric parameters, which we evaluate to find those that cause the focus to occur inside the sphere, and the unexpected phase change. JF - American Geophysical Union Fall Meeting AU - Saintenoy, Albane Claire AU - Leger, Emmanuel AU - Diemer, Florian AU - Arcone, Steven A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P51C EP - 2082 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Experimental+and+numerical+demonstration+of+anomalous+enhanced+backscatter+by+subsurface+spherical+dielectric+anomalies&rft.au=Saintenoy%2C+Albane+Claire%3BLeger%2C+Emmanuel%3BDiemer%2C+Florian%3BArcone%2C+Steven+A%3BAnonymous&rft.aulast=Saintenoy&rft.aufirst=Albane&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - A cloud based framework for monitoring and predicting subsurface system behaviour AN - 1844920617; 2016-100706 AB - Subsurface system behavior is driven and controlled by the interplay of physical, chemical, and biological processes which occur at multiple temporal and spatial scales. Capabilities to monitor, understand and predict this behavior in an effective and timely manner are needed for both scientific purposes and for effective subsurface system management. Such capabilities require three elements: Models, Data and an enabling cyberinfrastructure, which allow users to use these models and data in an effective manner. Under a DOE Office of Science funded STTR award Subsurface Insights and LBNL have designed and implemented a cloud based predictive assimilation framework (PAF) which automatically ingests, controls quality and stores heterogeneous physical and chemical subsurface data and processes these data using different inversion and modeling codes to provide information on the current state and evolution of subsurface systems. PAF is implemented as a modular cloud based software application with five components: (1) data acquisition, (2) data management, (3) data assimilation and processing, (4) visualization and result delivery and (5) orchestration. Serverside PAF uses ZF2 (a PHP web application framework) and Python and both open source (ODM2) and in house developed data models. Clientside PAF uses CSS and JS to allow for interactive data visualization and analysis. Client side modularity (which allows for a responsive interface) of the system is achieved by implementing each core capability of PAF (such as data visualization, user configuration and control, electrical geophysical monitoring and email/SMS alerts on data streams) as a SPA (Single Page Application). One of the recent enhancements is the full integration of a number of flow and mass transport and parameter estimation codes (e.g., MODFLOW, MT3DMS, PHT3D, TOUGH, PFLOTRAN) in this framework. This integration allows for autonomous and user controlled modeling of hydrological and geochemical processes. In our presentation we will discuss our software architecture and present the results of using these codes and the overall developed performance of our framework using hydrological, geochemical and geophysical data from the LBNL SFA2 Rifle field site. JF - American Geophysical Union Fall Meeting AU - Versteeg, R J AU - Rodzianko, A AU - Johnson, Doug Val AU - Soltanian, Mohammad Reza AU - Dwivedi, D AU - Dafflon, B AU - Tran, A P AU - Versteeg, Owen J AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract IN13A EP - 1818 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844920617?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+cloud+based+framework+for+monitoring+and+predicting+subsurface+system+behaviour&rft.au=Versteeg%2C+R+J%3BRodzianko%2C+A%3BJohnson%2C+Doug+Val%3BSoltanian%2C+Mohammad+Reza%3BDwivedi%2C+D%3BDafflon%2C+B%3BTran%2C+A+P%3BVersteeg%2C+Owen+J%3BAnonymous&rft.aulast=Versteeg&rft.aufirst=R&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Preferential accumulation of gas hydrate in the Andaman accretionary wedge and relationship to anomalous porosity preservation AN - 1840621634; 2016-096192 AB - In the marine environment, sediments in the gas hydrate stability zone often correspond to slope and basin settings. These settings are dominantly composed of fine-grained silt and clay lithofacies with typically low vertical permeability, and pore fluids frequently under-saturated with respect to methane. As a result, the pressure-temperature conditions requisite for a GHSZ to be present occur widely worldwide across marine settings, however, the distribution of gas hydrate in these settings is neither ubiquitous nor uniform. This study uses sediment core and borehole related data recovered by drilling at Site 17 in the Andaman Sea during the Indian National Gas Hydrate Program Expedition 1 in 2006, to investigate reservoir-scale controls on gas hydrate distribution. In particular, this study finds that conditions beyond reservoir pressure, temperature, salinity, and gas concentration, appear to influence the concentration of gas hydrate in host sediments. Using field-generated datasets along with newly acquired sedimentology, physical property, imaging and geochemical data with mineral saturation and ion activity products of key mineral phases such as amorphous silica and calcite, we document the presence and nature of secondary precipitates that contributed to anomalous porosity preservation at Site 17 in the Andaman Sea. This study demonstrates the importance of grain-scale subsurface heterogeneities in controlling the occurrence and distribution of concentrated gas hydrate accumulations in marine sediments, and document the importance that increased permeability and enhanced porosity play in supporting gas concentrations sufficient to support gas hydrate formation. This illustrates the complex balance and lithology-driven controls on hydrate accumulations of higher concentrations and offers insights into what may control the occurrence and distribution of gas hydrate in other sedimentary settings. JF - American Geophysical Union Fall Meeting AU - Rose, Kelly AU - Torres, Marta E AU - Johnson, J